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Ingalls Area Hydrology

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Logs of Test Holes and Wells

The logs of 89 test holes and wells are given on the following pages; the locations of these wells are shown on Plate 1.

24-27-8cc. Drillers log of irrigation well in SW SW sec. 8, T. 24 S., R. 27 W., drilled by C. W. Henkle Co., 1948. Surface altitude, 2,697 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Soil 1 1
Clay, yellow 1 2
Silt, hard 3 5
Clay, yellow 16 21
Clay, white; cemented streaks 15 36
Sand, limy, soft 9 45
Clay, sandy, yellow 3 48
Sand, cemented 6 54
Clay, sandy, yellow 32 86
Gravel, fine; cemented streaks 17 103
Clay, yellow 7 110
Gravel, medium, loose; some "lime" 22 132
Clay, yellow 6 138
Cretaceous—Gulfian    
Carlile shale (?)    
Shale, blue 2 140

24-27-29ac. Drillers log of test hole in SW NE sec. 29, T. 24 S., R. 27 W., drilled by E. W. Henkle Co., 1946. Surface altitude, 2,703.0 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Soil 2 2
Clay, yellow 7 9
Sand, fine 7 16
Clay, yellow 16 32
Clay, limy; streaks of caliche 20 52
Clay, sandy; cemented streaks 6 58
Sand, cemented 8 66
Clay, sandy, pink 7 73
Gravel, fine 4 77
Clay, sandy, brown 15 92
Gravel, clay streaks 8 100
Gravel 8 108
Clay 2 110
Gravel 34 144
Mortar bed 1 145
Gravel 8 153
Cretaceous—Gulfian    
Carlile shale (?)    
Shale 2 155

24-28-15dd. Sample log of test hole 18 at SE cor. sec. 15, T. 24 S., R. 28 W., Gray County, drilled by State and Federal Geological Surveys, 1941. Surface altitude, 2,742.4 feet. Thickness,
feet
Depth,
feet
Soil, sandy, tan 0.5 0.5
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Silt, tan; contains scattered sand and gravel 16.5 17
Silt and sand, fine, tan; contains limy nodules 14 31
Silt, sandy, limy, tan 24 55
Caliche, silty, light gray to white 5 60
Silt, sandy, limy, tan to white 4.5 64.5
Caliche, hard, light tan to light gray 1.5 66
Sand, fine to medium, cemented, tan 6 72
Sand and gravel; brown 2 74
Silt, sand, and gravel; cemented; gray 5 79
Sand and gravel; brown 4 83
Gravel, medium to coarse, cemented 7 90
Silt and sand, fine, limy, tan to reddish brown 21 111
Caliche, soft, light gray; silt and sand, fine; limy 3 114
Gravel, medium to coarse, brown 16 130
Silt, sand, and gravel 11 141
Caliche, light gray and tan; silt and fine sand; limy 4 145
Silt and sand, fine, limy, light gray to white 6 151
Silt and clay, silty, yellow tan 7 158
Sand and gravel; brown 5 163
Silt, sandy, tan 27 190
Sand, fine, to fine gravel, limy, silty, tan 20 210
Silt and sand, fine, limy, tan 5.5 215.5
Cretaceous—Gulfian    
Carlile shale    
Fairport shale member    
Shale, calcareous, black 4.5 220
Shale, calcareous, dark gray to black; thin calcite veins 6 226
Greenhorn (?) limestone    
Shale, calcareous, light gray and black; contains 5-inch bed of blue-gray bentonite at 261 feet 46 272
Shale, silty, sandy, calcareous, black 18 290
Shale, calcareous, silty, dark gray to black; contains few thin beds of blue-gray bentonite and calcite 57 347
Shale, calcareous, silty, light gray to white; contains interbedded hard black shale 3 350
Graneros shale—Kiowa (?) shale    
Shale, noncalcareous, blue gray; contains few thin beds of dark-gray sandstone 23 373
Shale, noncalcareous, silty, light gray to black; contains pyrite 6.5 379.5
Sandstone, hard, dark gray .5 380
Shale, noncalcareous, silty, light to medium gray 20 400
Shale, noncalcareous, silty, light gray, and shale, sandy, gray 20 420
Shale, noncalcareous, dark gray, and shale, silty and sandy, light gray 50 470
Shale, noncalcareous, sandy, light gray 25 495
Shale, noncalcareous, sandy, dark brown to black 5 500
Shale, sandy, laminated, light to dark gray and yellow 10 510
Shale, noncalcareous, dark gray; contains some medium-gray and orange-tan silty clay 26 536
Shale, noncalcareous, dark gray; contains some light-gray silty shale and brown sandy shale 24 560
Shale, noncalcareous, light to medium gray; contains sand, mineral charcoal, and some red clay 57 617

24-29-23ba1. Drillers log of test hole in NE NW sec. 23, T. 24 S., R. 29 W., drilled by E. W. Henkle Co., 1953. Surface altitude, 2,772.0 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Topsoil 3 3
Subsoil 3 6
Clay 20 26
Clay, sandy, limy; some cemented streaks 18 44
Mortar bed 1 45
Clay, sandy 47 92
Sand, fine; clay streaks 18 110
Sand, fine to coarse; clay streaks 18 128
Clay 4 132
Sand, fine; clay streaks 15 147
Sand, fine to medium; clay streaks 6 153
Clay 2 155
Sand, fine to coarse; clay streaks 7 162
Mortar bed 1 163
Sand, fine to coarse; clay streaks 3 166
Clay, streaks of fine sand 14 180
Sand, fine to medium; day streaks 12 192
Clay; sand streaks 3 195
Sand, fine; clay streaks 29 224
Clay 10 234
Cretaceous—Gulfian    
Carlile shale (?)    
Shale 1 235

24-29-24dc1. Drillers log of test hole in SW SE sec. 24, T. 24 S., R. 29 W., drilled by E. W. Henkle Co., 1952. Surface altitude, 2,766.0 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Topsoil 2 2
Subsoil 2 4
Clay 16 20
Caliche 31 51
Sand, fine to coarse; clay streaks; cemented streaks 18 69
Clay, sandy; cemented streaks 10 79
Clay, sandy 31 110
Sand, fine; clay streaks 8 118
Clay 4 122
Sand, fine to coarse; clay streaks 20 142
Clay, sandy, limy; cemented streaks 20 162
Clay; sand streaks 6 168
Clay 17 185
Clay, sandy; sand streaks; cemented streaks 30 215
Clay 27 242
Clay; sand streaks 13 255
Cretaceous—Gulfian    
Carlile shale (?)    
Shale 1 256

24-30-13dd. Sample log of test hole 19 at SE cor. sec. 13, T. 24 S., R. 30 W., Gray County, drilled by State and Federal Geological Surveys, 1941. Surface altitude, 2,819.2 feet. Thickness,
feet
Depth,
feet
Soil, dark brown 1 1
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Silt and sand, fine, limy, tan and light brown 19 20
Silt and sand, fine, limy, reddish tan to yellow tan; contains caliche 23 43
Silt and sand, fine, limy, cemented 5 48
Sand, coarse, to coarse gravel 12 60
Sand, coarse, to fine gravel, cemented 5.5 65.5
Sand, coarse, to coarse gravel 4.5 70
Sand, fine, tan 3 73
Sand, coarse, to coarse gravel; contains thin cemented zones 23 96
Gravel, fine, cemented 2.5 98.5
Silt and sand, fine, limy, tan 1.5 100
Sand, fine, to coarse gravel; partly cemented 31 131
Silt and sand, fine, tan 19 150
Silt, sand, gravel, and caliche 11 161
Sand, coarse, to medium gravel 11 172
Silt and sand, fine, ta 11 183
Sand, coarse, to coarse gravel 27 210
Gravel, fine to coarse; composed mostly of white to light-gray limestone pebbles 14 224
Clay, noncalcareous, yellow and gray 18 242
Cretaceous—Gulfian    
Carlile shale (?)    
Fairport shale member    
Shale, calcareous, dark gray 8 250

24-30-33dd. Sample log of test hole 32 drilled by U. S. Bureau of Reclamation April 1956, in SE cor. sec. 33, T. 24 S., R. 30 W. Surface altitude, 2,854.5 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Silt, sandy, dark gray brown 2 2
Silt, calcareous, tan gray 7.5 9.5
Silt, sandy, very calcareous, pink tan to tan gray 15.5 25
Silt, sandy, very calcareous, gray white 9 34
Silt, sandy, calcareous, pink tan 17.5 51.5
Sand, fine to very coarse; contains some silt and some lime-cemented streaks 8.5 60
Sand, fine to coarse, and fine to coarse gravel; contains some lime-cemented streaks near base 19 79
Silt, sandy, calcareous, light gray tan 3 82
Sand, fine to coarse, and fine to medium gravel 13 95
Sand, fine to coarse; contains some calcareous gray-tan silt streaks and some lime-cemented streaks 13 108
Silt, sandy, calcareous, pink tan 3.5 111.5
Sand, fine to coarse, and fine gravel 8.5 120
Silt, very sandy, calcareous, pink tan 1 121
Sand, fine to coarse; contains some fine gravel and some tan silt and clay streaks 24 145
Silt, sandy, very calcareous, gray white to gray tan 17 162
Sand, fine to medium; contains some silt streaks 5 167
Silt, sandy, calcareous, light tan; contains some sand streaks and some lime-cemented streaks 9.5 176.5
Sand, fine to coarse; contains some calcareous tan silt streaks 23.5 200
Silt, very clayey, calcareous, tan; contains some sand streaks 7 207
Clay, silty, sandy, calcareous, tan 3 210
Sand, fine to coarse; contains some clayey calcareous tan silt streaks and silty tan clay streaks at 215 to 217 and 253 to 255 feet 60 270
Sand, fine to coarse, and fine gravel; contains some silt streaks and much Cretaceous-derived material 16.5 286.5
Cretaceous—Gulfian    
Carlile shale (?)    
Shale, calcareous, dark gray 3.5 290

24-31-14d. Drillers log of irrigation well 162 of H. Harms in SE sec. 14, T. 24 S., R. 31 W. Surface altitude, 2,881.9 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Soil and "gyp" 50 50
Sand and rock 30 80
Clay, sandy 15 95
Clay, tough 5 100
Sand, fine 5 105
Clay, sandy 25 130
Sand 13 143
Rock 2 145
"Gyp", sandy 25 170
Clay, tough 15 185
Gravel, water bearing 20 205
Clay 2 207
Gravel 58 265
Cretaceous—Gulfian    
Carlile shale    
Fairport shale member    
Clay, yellow, sticky 15 280

24-31-25dd. Sample log of test hole 1 drilled by U. S. Bureau of Reclamation January 1956, in SE cor. sec. 25, T. 24 S., R. 31 W. Surface altitude, 2,864.7 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Silt, sandy, calcareous, gray 3 3
Silt, sandy, calcareous, light tan 7.7 10.7
Sand, fine to medium, very silty, calcareous, light tan 4.3 15
Silt, very sandy, calcareous, pink tan to brown 14.4 29.4
Sand, fine to coarse, and fine to coarse gravel at base; contains some tan calcareous silt streaks and lime-cemented streaks 45 74.4
Silt, very sandy, calcareous, tan to brown 15 89.4
Sand, fine to coarse; contains streaks of tan calcareous silt 10 99.4
Sand, fine to coarse, and fine to medium gravel; contains some calcareous tan silt streaks and lime-cemented streaks 15 114.4
Silt, very sandy, slightly calcareous, tan 5 119.4
Sand, fine to coarse; contains much calcareous, pink-tan silt and some fine gravel at base 10 129.4
Silt, very sandy, tan to brown; contains hard calcareous streaks 15 144.4
Sand, fine to coarse; contains some calcareous tan silt streaks and lime-cemented streaks 10 154.4
Silt, very sandy, calcareous, light tan 5 159.4
Sand, fine to coarse; contains many streaks of calcareous tan silt, brown clay streaks at 159.4 to 164.4 feet, and Some lime-cemented streaks 50 209.4
Silt, very sandy, calcareous, light tan 10 219.4
Sand, fine to coarse, and fine gravel; contains many Cretaceous-derived pebbles and streaks of tan silt and silty clay 10 229.4

24-31-31b. Sample log of test hole 9 in NW sec. 31, T. 24 S., R. 31 W., Finney County, drilled by State and Federal Geological Surveys, 1941. Surface altitude, 2,791.2 feet. Thickness,
feet
Depth,
feet
Soil, sandy, dark 2 2
Quaternary—Pleistocene    
Recent—Alluvium    
Silt and sand, fine, light tan and light gray 4 6
Gravel, fine to very coarse; contains some sand and cobbles 31 37
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Silt and sand, fine, tan and light gray; contains lime-cemented bed at 41 to 43 feet 12 49
Sand and gravel, poorly sorted, brown 17 66
Silt and sand, fine, tan; contains thin lenses of coarser sand and gravel 12 78
Sand, fine, lime cemented, tan 5 83
Sand, fine, limy; contains thin cemented beds 7 90
Silt and sand, fine, limy, tan and light gray 9.5 99.5
Sand, fine, tan to brown; contains cemented zones and white and yellow chalk and limestone pebbles 20.5 120
Silt and sand, fine, tan; contains some clay 17 137
Sand, medium, to medium gravel; contains caliche fragments and yellow chalk pebbles 26 163
Silt, clayey, sandy, tan 3 166
Sand, medium, to medium gravel 3 169
Silt, clayey, tan 6 175
Sand, medium, to fine gravel; contains chalk pebbles 28 203
Silt and sand, fine, tan and gray 5.5 208.5
Sand, medium, to fine gravel, brown 5.5 214
Cretaceous—Gulfian    
Carlile shale    
Fairport (?) shale member    
Shale, silty, yellow tan; contains hard sandstone concretions 3.5 217.5
Shale, calcareous, dark gray 2.5 220

25-28-20aa. Sample log of test hole 23 drilled by U. S. Bureau of Reclamation March 1956, in SE cor. NE NE sec. 20, T. 25 S., R. 28 W. Surface altitude, 2,757.2 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Silt, sandy, gray brown 2 2
Silt, calcareous, tan; contains some sand near base 12.7 14.7
Silt, very calcareous, gray tan; contains some sand near base 15 29.7
Silt, sandy, very calcareous, light pink gray to pink tan 35 64.7
Sand, fine to coarse; contains fine to coarse gravel at 74.7 to 89.7 feet, some calcareous tan silt streaks, and some lime-cemented streaks 25 89.7
Silt, clayey, sandy, calcareous, pink tan 5 94.7
Sand, fine to coarse; contains some fine gravel at 99.7 to 104.7 and 114.7 to 119.7 feet, some calcareous tan silt streaks, and some lime-cemented streaks 55 149.7
Silt, sandy, very calcareous, gray tan; contains sand streaks and some lime-cemented streaks 20 169.7
Sand, fine to coarse; contains some calcareous clayey tan silt streaks 5 174.7
Silt, calcareous, gray tan; contains some tan clay streaks and some sand streaks 10 184.7
Sand, fine to coarse; contains some fine gravel at 189.7 to 199.7 feet and some calcareous tan silt streaks 50 234.7
Sand, fine to coarse, and fine gravel; contains some calcareous clayey tan silk streaks and much Cretaceous-derived material 63.3 298
Cretaceous—Gulfian    
Carlile shale (?)    
Shale, calcareous, dark gray 1.7 299.7

25-28-23cb1. Drillers log of test hole in NW SW sec. 23, T. 25 S., R. 28 W., drilled by E. W. Henkle Co., 1953. Surface altitude, 2,748 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Topsoil 2 2
Subsoil 2 4
Clay, silty 31 35
Clay, limy 5 40
Clay, sandy 12 52
Clay, sandy, limy; cemented streaks 17 69
Mortar bed 6 75
Clay, sandy, limy 7 82
Sand, fine to medium 6 88
Sand, cemented 7 95
Sand, fine to medium 23 118
Clay, sandy, sand streaks 19 137
Sand, fine to medium, clay streaks 19 156
Clay, sandy, limy 8 164
Clay, cemented streaks 12 176
Mortar bed 1 177
Sand, fine 3 180
Mortar bed 6 186
Sand, fine to coarse, clay streaks 14 200
Clay 4 204
Sand, fine, clay streaks 15 219
Clay, sand streaks 8 227
Sand, fine to medium; clay streaks 13 240
Sand, fine to coarse, clay streaks 14 254
Clay 3 257
Cretaceous—Gulfian    
Carlile shale (?)    
Shale 1 258

25-28-24dd. Sample log of test hole 25 drilled by U. S. Bureau of Reclamation March 1956, in SW cor. SE SE sec. 24, T. 25 5., R. 28 W. Surface altitude, 2,728.3 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Silt, sandy, gray 4.5 4.5
Silt, light tan 5.2 9.7
Silt, sandy, calcareous, light tan 20 29.7
Silt, very sandy, very calcareous near base, gray tan to pink tan; contains some sand streaks and some lime-cemented streaks 47.8 77.5
Sand, fine to coarse, and fine to medium gravel; contains some calcareous tan silt streaks near base and some lime-cemented streaks 42.2 119.7
Silt, very sandy, calcareous, pink tan to tan 17.8 137.5
Sand, fine to very coarse; contains some calcareous tan silt streaks 12.2 149.7
Silt, sandy, calcareous, pink tan to gray tan 40 189.7
Sand, fine to coarse, and fine gravel; contains some calcareous tan silt and clay streaks and some Cretaceous-derived material 25 214.7
Silt, clayey, sandy, calcareous, tan 5 219.7
Sand, fine to coarse; contains some clayey tan silt streaks 15 234.7
Sand, fine to coarse, and fine gravel; contains some clayey tan silt and much Cretaceous-derived material 23 257.7
Cretaceous—Gulfian    
Carlile shale (?)    
Shale, calcareous, dark gray 2 259.7

25-28-27dd. Sample log of test hole 20 at SE cor. sec. 27, T. 25 S., R. 28 W., Gray County, drilled by State and Federal Geological Surveys, 1941. Surface altitude, 2,751.1 feet. Thickness,
feet
Depth,
feet
Soil, sandy, dark brown 2 2
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Silt, tan to red brown; contains scattered sand and gravel 8 10
Silt and sand, fine, limy, light tan to red brown; contains caliche nodules 45.5 55.5
Silt and sand, fine, lime cemented, soft, white to light tan, and caliche 9.5 65
Sand, fine, red tan, gray, and yellow, and caliche 15 80
Sand, fine, to coarse gravel, loose; contains cemented zones 17.5 97.5
Sand, fine, limy, light tan 2.5 100
Silt and sand, fine, light tan; contains scattered coarse sand and gravel 10 110
Sand, fine to medium, tan; contains scattered gravel and caliche 10 120
Sand, fine, to fine gravel, silty 30 150
Silt, sand, and gravel, limy, tan 24 174
Sand, fine, pink tan 6 180
Sand, fine, limy, light tan; contains some coarse sand, fine gravel, and caliche 7 187
Silt and sand, fine, limy, white to light tan, and caliche 8 195
Sand, gravel, and caliche 25 220
Silt and sand, fine, tan 10 230
Sand, fine, to fine gravel, silty 40 270
Sand, fine, to medium gravel 15 285
Silt, sandy, light tan 5 290
Silt and sand, fine, clayey, tan to light brown 13 303
Cretaceous—Gulfian    
Carlile shale (?)    
Shale, calcareous, light to dark gray and dark brown; contains thin crystalline calcite veins 7 310

25-29-3cc. Sample log of test hole 14 drilled by U. S. Bureau of Reclamation March 1956, in SW cor. sec. 3, T. 25 S., R. 29 W. Surface altitude, 2,793.7 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Silt, sandy, gray brown 1 1
Silt, sandy at base, calcareous, tan 8 9
Silt, sandy, very calcareous, light gray tan 22 31
Silt, sandy, very calcareous, pink gray to gray tan; contains some lime-cemented streaks 21.5 52.5
Sand, fine to coarse, and fine to medium gravel; contains some sandy gray-tan clay at 62.5 to 66 feet 15.5 68
Silt, sandy, calcareous, light gray tan 2 70
Sand, fine to coarse, and fine gravel; contains some lime-cemented streaks 27 97
Silt, sandy, calcareous, clayey, pink tan 9 106
Sand, fine to coarse, and some fine gravel 45.5 151.5
Silt, very sandy, very calcareous, light pink gray 11.5 163
Sand, fine to medium; contains some calcareous pink-tan silt streaks 6.5 169.5
Silt, very sandy, calcareous, pink tan; contains some fine gravel 8 177.5
Sand, fine to coarse, and fine gravel; contains some calcareous gray-white clay 14.5 192
Silt, sandy, calcareous, gray green to tan; contains some clay 24 216
Sand, fine to coarse; contains some fine gravel near base and some calcareous gray-green clay streaks 23.5 239.5
Clay, silty, calcareous, tan; contains some fine to coarse sand streaks 5 244.5
Sand, fine to coarse, and fine gravel; contains calcareous silty gray-tan clay streaks at 249.5 to 269.5 feet and much Cretaceous-derived material 40.5 285
Cretaceous—Gulfian    
Carlile shale (?)    
Shale, calcareous, dark gray 4.5 289.5

25-29-12cc. Sample log of test hole 22 drilled by U. S. Bureau of Reclamation March 1956, in SW COT. sec. 12, T. 25 S., R. 29 W. Surface altitude, 2,765.8 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Silt, sandy, dark gray 1.3 1.3
Silt, calcareous, tan gray 6.7 8
Silt, very sandy, calcareous, gray tan 16.8 24.8
Silt, very sandy, very calcareous, gray tan to pink tan 32.7 57.5
Sand, fine to coarse, and fine gravel; contains some tan silt 13.5 71
Silt, sandy, calcareous, gray tan 3.8 74.8
Sand, fine to coarse, and fine gravel; contains some calcareous tan silt streaks and some lime-cemented streaks 30 104.8
Silt, sandy, calcareous, light tan 5 109.8
Sand, fine to coarse; contains some fine gravel and some calcareous tan silt streaks 11.2 121
Silt, very sandy, calcareous, red tan 8.8 129.8
Sand, fine to coarse; contains much calcareous tan silt 5 134.8
Silt, very sandy, very calcareous, red tan to gray tan; contains tan clay streaks at 144.8 to 168 feet and sand streaks at 153 to 154.8 feet 33.2 168
Sand, fine to coarse, and fine gravel; contains some calcareous tan silt streaks 19 187
Silt, sandy, calcareous, light tan 6 193
Sand, fine; contains much calcareous tan silt 10 203
Silt, clayey, sandy, calcareous, light tan 5 208
Sand, fine to medium; contains some calcareous tan silt streaks 11.8 219.8
Silt, clayey, sandy, calcareous, light tan 6.7 226.5
Sand, fine to coarse; contains fine gravel at 254.8 to 272.5 feet, some clayey tan silt streaks, and much Cretaceous-derived material 46 272.5
Silt, sandy, calcareous, light gray tan 1.5 274
Sand, fine to coarse 3.5 277.5
Silt, very sandy, calcareous, light gray tan 2.3 279.8
Sand, fine to coarse, silty; contains some lime-cemented streaks 8.2 288
Cretaceous—Gulfian    
Carlile shale (?)    
Shale, calcareous, dark gray 1.8 289.8

25-29-24cc. Sample log of test hole 21 drilled by U. S. Bureau of Reclamation March 1956, in SW cor. sec. 24, T. 25 S., R. 29 W. Surface altitude, 2,774.0 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Silt, sandy, gray brown 1 1
Silt, sandy, very calcareous near base, light tan to gray tan 17 18
Silt, sandy, very calcareous, pink tan to gray tan; contains some sand streaks and some lime-cemented streaks 45 63
Sand, fine to coarse, and fine to medium gravel; contains some silty tan clay streaks at 85.1 to 103 feet 40 103
Silt, very sandy, calcareous, gray tan to tan 17.1 120.1
Sand, fine to coarse; contains fine gravel at 145 to 198 feet, some calcareous tan silt streaks, and some lime-cemented streaks 78 198.1
Silt, clayey, very sandy, calcareous, gray tan 12 210.1
Sand, fine to coarse; contains some silty tan clay streaks near top and some fine gravel 26.9 237
Silt, very clayey, sandy, calcareous, light gray tan to tan 18.1 255.1
Sand, fine to coarse; contains some silt 5 260.1
Silt, clayey, very sandy, very calcareous, gray tan; contains some lime-cemented streaks 15 275.1
Cretaceous—Gulfian    
Carlile shale (?)    
Shale, calcareous, dark gray 2.5 277.6

25-29-27cc1. Drillers log of test hole in SW cor. sec. 27, T. 25 S., R. 29 W., drilled by E. W. Henkle Co. Surface altitude, 2,675 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Soil and clay 10 10
Gravel 47 57
Clay, yellow 10 67
Clay, sandy, sand streaks 48 115
Sand, loose 3 118
Clay 12 130
Clay, sandy 10 140
Clay, sand streaks 8 148
Clay 5 153
Sand and gravel, loose 7 160
Clay, cemented sand streaks 4 164
Sand and gravel 6 170
Rock 3 173

25-29-28bd. Sample log of test well in SE NW sec. 28, T. 25 S., R. 29 W., drilled July 1956 by Western Drilling Co. Surface altitude, 2,690.0 feet. Thickness,
feet
Depth,
feet
Quaternary—Pleistocene    
Recent—Alluvium    
Silt, sandy, gray 3 3
Sand, fine to coarse, and fine gravel 3 6
Silt, sandy, calcareous, light tan 5 11
Sand, fine to coarse, and fine to coarse gravel and cobbles; silt streak at 17 to 18 feet 23 34
Tertiary—Pliocene    
Ogallala formation    
Clay, silty, sandy, slightly calcareous, tan 5 39
Sand, fine to coarse, and fine gravel; contains some silt and clay streaks; lower part partly cemented 14 53
Sand, fine to coarse, and fine gravel, silty 9 62
Silt, sandy, calcareous, tan 10 72
Sand, fine to coarse, silty, partly lime cemented 8 80
Clay, sandy, silty, tan 5 85
Silt, sandy, very clayey, calcareous, tan; contains some sand streaks 16 101
Sand, fine to medium 1 102
Silt, very sandy, calcareous, tan; contains gray and tan clay 24 126
Sand, fine to coarse, and fine gravel; contains some tan silt 11 137
Silt, sandy, clayey, calcareous, tan 4 141
Sand, fine to coarse, and fine to medium gravel; contains some silt streaks 7 148
Silt, sandy, calcareous, light gray tan 9 157
Sand, fine to coarse, and fine to medium gravel; contains much Cretaceous-derived material 8 165
Silt, very sandy, calcareous, light tan 10 175
Sand, fine to coarse, and fine gravel, very silty; contains much Cretaceous-derived material 7 182
Clay, silty, calcareous, light tan 2 184
Sand, fine to coarse, and fine gravel, very silty, calcareous, lime cemented 3 187
Cretaceous—Gulfian    
Carlile shale (?)    
Shale, calcareous, dark gray 3 190

25-29-28ca. Drillers log of test well in NE SW sec. 28, T. 25 S., R. 29 W., 135 feet north of Arkansas River, drilled March 1956 by Gestenslager Drilling Company. Thickness,
feet
Depth,
feet
Quaternary—Pleistocene    
Recent—Alluvium    
Silt, sandy, tan 4 4
Sand and gravel 23 27
Gravel and sand 2 29
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Sand, fine to coarse, silty, cemented 6 35

25-29-34bc. Sample log of test hole 15 drilled by U. S. Bureau of Reclamation March 1956, in SW NW sec. 34, T. 25 S., R. 29 W. Surface altitude, 2,679.4 feet. Thickness,
feet
Depth,
feet
Quaternary—Pleistocene    
Recent—Alluvium    
Sand, fine, silty, brown 1 1
Silt, sandy, calcareous, gray tan 3 4
Silt, clayey, black 2.5 6.5
Sand, fine to coarse, and fine to medium gravel 23.5 30
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Silt, very sandy, calcareous, clayey in upper part, gray tan 9.1 39.1
Sand, fine to coarse, and fine to medium gravel; contains some silty tan calcareous clay streaks and some lime-cemented streaks 20 59.1
Clay, silty, sandy, gray to tan; contains some sand streaks 20 79.1
Sand, fine to coarse; contains some silty tan clay and some lime-cemented streaks 5 84.1
Clay, silty, sandy, gray to tan; contains some sand streaks 15 99.1
Silt, sandy, calcareous, light tan gray; contains some tan clay streaks 10 109.1
Clay, silty, sandy, calcareous, light tan 15 124.1
Silt, very clayey, sandy, calcareous, light tan 5.9 130
Sand, fine to coarse; contains some light-tan clayey silty streaks 14.1 144.1
Sand, fine to coarse; contains some fine gravel and some tan silt; contains cemented streaks near base and much Cretaceous-derived material 20 164.1
Cretaceous—Gulfian    
Carlile shale (?)    
Shale, calcareous, dark gray 2.2 166.3

25-29-36dc. Log of test hole augered by State Geological Survey, March 1956, in SW SE sec. 36, T. 25 S., R. 29 W., 1,800 feet north of Arkansas River. Surface altitude, 2,673.3 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Cinders, soil, road fill 2 2
Silt, clayey, brown 6 8
Silt, reddish brown; contains calcareous nodules 9 17
Sand and coarse gravel 3 20
Sandstone, well cemented 3 23

25-30-1aa. Sample log of test hole 13 drilled by U. S, Bureau of Reclamation March 1956, in NE cor. sec. 1, T. 25 S., R. 30 W. Surface altitude, 2,832.2 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Silt, sandy, gray brown 2 2
Silt, sandy, calcareous in lower part, tan 10 12
Silt, sandy, very calcareous, tan to pink and gray tan 53 65
Sand, fine to coarse, and fine gravel; contains some lime-cemented streaks 9 74
Silt, sandy, calcareous, tan to pink and gray tan; contains some sand streaks 17 91
Sand, fine to coarse, and fine gravel, silty 5 96
Silt, very sandy, calcareous, light gray tan; contains some lime-cemented sand streaks 6 102
Sand, fine to very coarse; contains some fine gravel at base, some calcareous tan silt streaks, and some lime-cemented streaks 45.5 147.5
Silt, sandy, very calcareous, gray tan to pink tan 28.5 176
Sand, fine to coarse; contains some calcareous tan silt streaks and some lime-cemented streaks 18 194
Silt, sandy, calcareous, light gray tan 3 197
Sand, fine to coarse, and fine gravel 3 200
Silt, sandy, calcareous, gray tan 4 204
Sand, fine to coarse, and fine to medium gravel; contains some Cretaceous-derived material 7 211
Silt, sandy, calcareous, tan 1.5 212.5
Sand, fine to coarse at base; contains some calcareous tan silt streaks 36.5 249
Clay, silty, sandy, tan 2 251
Sand, fine to coarse, and fine gravel; contains some silty tan clay streaks near base and much Cretaceous-derived material 32.5 283.5
Cretaceous—Gulfian    
Carlile shale (?)    
Shale, calcareous, dark gray 1.5 285

25-30-6cc. Sample log of test hole 2 drilled by U. S. Bureau of Reclamation February 1956, in SW car. sec. 6, T. 25 S., R. 30 W. Surface altitude, 2,853.9 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Silt, light gray 2 2
Silt, sandy, calcareous, light tan 12.4 14.4
Sand, very fine to fine, silty 5 19.4
Silt, sandy, very calcareous, gray white 5 24.4
Silt, very sandy, calcareous, pink tan 5 29.4
Sand, fine to coarse; contains streaks of very calcareous pink-tan silt 10 39.4
Silt, very sandy, very calcareous in upper part, white to pink tan 15 54.4
Sand, fine to coarse; contains some silt and clay streaks and lime-cemented streaks 15 69.4
Sand, fine to coarse, and fine to medium gravel; contains streaks of calcareous tan silt and some cemented streaks near base 30 99.4
Sand, fine to coarse, and some fine gravel near base; contains some silt streaks 20 119.4
Silt, very sandy, calcareous, light tan; contains some sand streaks 10 129.4
Sand, fine to coarse; contains some fine to medium gravel at base and some calcareous tan silt and clay streaks 20 149.4
Silt, sandy, very calcareous, gray tan to tan; contains some tan clay streaks at 164.4 to 169.4 feet 35 184.4
Sand, fine to coarse; contains some fine gravel at base and some calcareous tan silt and clay streaks 40 224.4
Silt, sandy, calcareous, tan; contains some tan clay streaks and thin streaks of sand and fine gravel 10 234.4
Sand, fine to medium; contains streaks of calcareous clayey tan silt 10 244.4
Silt, very sandy, clayey, calcareous, gray tan 5 249.4
Sand, fine to coarse; contains some fine gravel, some tan clayey silt streaks, and some Cretaceous-derived pebbles 15 264.4
Silt, very sandy, calcareous, gray tan 10 274.4
Sand, fine to coarse; contains some fine gravel, some tan sandy calcareous silt and clay streaks, some lime-cemented streaks, and some Cretaceous-derived pebbles 22.8 297.2
Clay, silty, calcareous, light gray tan 2.8 300
Cretaceous—Gulfian    
Carlile shale (?)    
Shale, calcareous, dark gray 4 304

25-30-12dd. Sample log of test hole 12 drilled by U. S. Bureau of Reclamation March 1956, in SE cor. sec. 12, T. 25 S., R. 30 W. Surface altitude, 2,825.5 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Silt, sandy, gray brown 1.5 1.5
Silt, sandy, calcareous, light tan 13.6 15.1
Silt, sandy, very calcareous, pink tan to gray tan; contains some sand streaks 33 48.1
Sand, fine; contains much calcareous tan silt 10 58.1
Silt, very sandy, calcareous, tan gray 2 60.1
Sand, fine to coarse, and fine gravel; contains some calcareous tan silt streaks in lower half and some lime-cemented streaks 46 106.1
Silt, very sandy, calcareous, pink tan 4 110.1
Sand, fine to coarse; contains some fine gravel at 117 to 120 and at 142 to 145 feet, lime-cemented streaks near base, and some calcareous silt streaks 52 162.1
Silt, very sandy, calcareous, tan gray 6 168.1
Sand, fine to medium; contains some calcareous tan silt streaks and some lime-cemented streaks 7 175.1
Silt, sandy, clayey, calcareous, tan gray; contains some lime-cemented streaks 5 180.1
Sand, fine to medium; contains some calcareous silt streaks 2 182.1
Silt, sandy, clayey, calcareous, gray tan to pink tan 14 196.1
Sand, fine to medium; contains some calcareous silt 5 201.1
Silt, sandy, clayey in upper part, calcareous, gray tan 9 210.1
Sand, fine to coarse; contains some calcareous gray-tan silt streaks in upper part and some lime-cemented streaks 28 238.1
Clay, sandy, silty, gray green and tan 6 244.1
Sand, fine to coarse; contains some silty clay streaks 10 254.1
Clay, sandy, silty, calcareous, gray green and tan; contains some sand streaks 26 280.1
Sand, fine to coarse, and fine gravel near base; contains some silty tan clay streaks, some lime-cemented streaks and much Cretaceous-derived material 15.4 295.5
Cretaceous—Gulfian    
Carlile shale (?)    
Shale, calcareous, dark gray 4.6 300.1

25-30-21bd. Sample log of test well in SE NW sec. 21, T. 25 S., R. 30 W., drilled July 1956, by Western Drilling Co. Surface altitude, 2,723 feet. Thickness,
feet
Depth,
feet
Quaternary—Pleistocene    
Recent—Alluvium    
Silt, sandy, gray 3 3
Silt, slightly calcareous, black 5 8
Sand, fine to coarse, and fine to very coarse gravel 30 38
Tertiary—Pliocene    
Ogallala formation    
Sand, fine to coarse, and gravel, lime cemented 1 39
Silt, sandy, calcareous, gray tan; partly cemented with lime near base 11 50
Sand, fine to coarse, and fine to medium gravel, silty; contains some lime-cemented streaks 10 60
Silt, sandy, calcareous, clayey, light tan to tan; contains some sand streaks 30 90
Sand, fine to coarse, and fine gravel; contains some silt streaks 10 100
Silt, sandy, calcareous, clayey, tan 20 120
Sand, fine to coarse, and much calcareous tan silt 15 135
Silt, sandy, calcareous, clayey, tan 15 150
Sand, fine to coarse, and fine gravel, very silty, lime-cemented 12 162
Cretaceous—Gulfian    
Carlile shale (?)    
Shale, calcareous, dark gray 33 195

25-30-22ac. Drillers log of irrigation well in SW NE sec. 22, T. 25 S., R. 30 W., drilled by E. W. Henkle Co., 1947. Surface altitude, 2,722.3 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Clay 8 8
Sand 10 18
Clay 2 20
Sand 18 38
Sand, cemented 2 40
Sand 9 49
Clay 11 60
Caliche 7 67
Sand, cemented 3 70
Sand 2 72
Caliche 11 83
Clay 25 108
Sand 10 118
Clay, sandy 57 175

25-30-22cb. Drillers log of test hole for irrigation well in NW SW sec. 22, T. 25 S., R. 30 W., drilled by E. W. Henkle Co., 1947. Surface altitude, 2,724.7 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Clay and sand 23 23
Sand 23 46
Clay 16 62
Rock 11 73
Sand 11 84
Clay 15 99
Sand, fine 22 121
Clay 29 150
Sand 5 155
Clay 24 179

25-30-24ca2. Log of test hole augered by State Geological Survey March 1956, in NE SW sec. 24, T. 25 S., R. 30 W., 4,100 feet north of Arkansas River. Surface altitude, 2,711.8 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Silt, black 1 1
Silt, sandy, tan 3 4
Sand, fine 2 6
Silt, sandy, tan 10 16
Sand, fine, gray; contains much silt 3 19
Gravel and sand 41 60
Silt and very fine sand, tan 2 62

25-30-24ca3. Log of test hole augered by State Geological Survey March 1956, in NE SW sec. 24, T. 25 S., R. 30 W., 3,400 feet north of Arkansas River. Surface altitude, 2,709.3 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Sand, fine to coarse, silty; contains some limy nodules 4 4
Silt, sandy, tan 6 10
Sand, fine to coarse, tan 9 19
Gravel and sand 39 58
Silt and very fine sand, tan 1 59

25-30-24cd1. Log of test hole augered by State Geological Survey March 1956, in SE SW sec. 24, T. 25 S., R. 30 W., 2,900 feet north of Arkansas River. Surface altitude, 2,703.5 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Sand, fine; contains some black silt 1 1
Sand, fine, tan 3 4
Silt, tan 1 5
Sand, fine to coarse, yellow 1 6
Sand, fine to coarse, reddish brown 1 7
Gravel and sand 41 48
Silt, tan 1 49

25-30-24cd2. Log of test hole augered by State Geological Survey March 1956, in SE SW sec. 24, T. 25 S., R. 30 W., 2,500 feet north of Arkansas River. Surface altitude, 2,699.4 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Silt, sandy, road fill 2 2
Sand, fine, tan 1 3
Silt, gray 2 5
Sand, yellow 1 6
Sand and gravel, silty, gray 9 15
Gravel and sand, tan 42 57
Silt, tan 2 59

25-30-25ba1. Log of test hole augered by State Geological Survey March 1956, in NE NW sec. 25, T. 25 S., R. 30 W., 1,900 feet north of Arkansas River. Surface altitude, 2,699.5 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Silt, sandy, road fill 4 4
Sand and gravel, tan 15 19
Gravel, fine to medium 26 45
Sand, cemented 3 48
Silt, tan 6 54

25-30-25ba2. Sample log of test hole 21 at NE cor. NW sec. 25, T. 25 S., R. 30 W., Gray County, drilled by State and Federal Geological Surveys, 1941. Surface altitude, 2,698.2 feet. Thickness,
feet
Depth,
feet
Soil, brown 1 1
Quaternary—Pleistocene    
Recent—Alluvium    
Sand, fine, silty, tan 1 2
Sand, coarse, to very coarse gravel 41 43
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Silt and sand, fine yellow tan; contains caliche and lime-cemented nodules 19 62
Sand, fine, hard, cemented 2.5 64.5
Silt and sand, fine, clayey, yellow tan; contains caliche and "mortar bed" fragments in upper part 18.5 83
Sand, fine, to fine gravel; contains some yellow-tan silty and sandy clay 27 110
Silt, fine sandy, yellow tan, and blocky, silty clay; contains scattered sand and gravel 20 130
Sand, fine, to coarse gravel; contains thin lenses of sandy silt 30 160
Sand, fine, silty, tan and gray, and sand and gravel containing pebbles of limestone and yellow shale 9 169
Cretaceous—Gulfian    
Carlile shale    
Fairport shale member    
Shale, silty and fine sandy, calcareous, dark gray 26 195
Shale, silty and fine sandy, light and medium gray, and shale, sandy, hard, dark gray 1.5 196.5
Shale, silty and fine sandy, calcareous, dark gray 3.5 200
Shale, silty and sandy, calcareous, light to dark gray; contains thin bed of blue-gray bentonite and calcite 10 210
Shale, sandy, hard, calcareous, dark gray 10 220

25-30-25ba3. Log of test hole augered by State Geological Survey March 1956, in NE NW sec. 25, T. 25 S., R. 30 W., 1,500 feet north of Arkansas River. Surface altitude, 2,699.8 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Silt, sandy, road fill 2 2
Silt, black 3 5
Sand, fine, yellow 2 7
Sand and gravel 44 51
Silt, tan 2 53

25-30-25bd1. Log of test hole augered by State Geological Survey February 1956, in SE NW sec. 25, T. 25 S., R. 30 W., 500 feet north of Arkansas River. Surface altitude, 2,701.5 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Silt, sandy, road fill 4 4
Sand, fine to coarse 15 19
Gravel and sand 19 38
Silt (determined from action of the auger) 3 41
Sand and gravel (no sample)    

25-30-25bd2. Log of test hole augered by State Geological Survey March 1956, in SE NW sec. 25, T. 25 S., R. 30 W., 400 feet south of Arkansas River. Surface altitude, 2,700.8 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Silt, sandy, road fill 2 2
Sand, silty, gray 2 4
Sand and gravel 5 9
Gravel and sand 42 51
Silt, tan 2 53

25-30-25ca1. Log of test hole augered by State Geological Survey March 1956, in NE SW sec. 25, T. 25 S., R. 30 W., 900 feet south of Arkansas River. Surface altitude, 2,701.3 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Silt, sandy, road fill 2 2
Silt, black, waxy 3 5
Sand, fine, yellow 3 8
Sand and gravel 37 45
Sand, fine to coarse, silty 7 52
Silt, tan 3 55

25-30-25ca2. Log of test hole augered by State Geological Survey March 1956, in NE SW sec. 25, T. 25 S., R. 30 W., 1,400 feet south of Arkansas River. Surface altitude, 2,701.6 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Silt, sandy, road fill 3 3
Sand, fine, silty 4 7
Clay, green 3 10
Sand, fine to coarse, greenish 8 18
Sand and gravel, silty, gray 6 24
Sand and gravel 29 53
Silt, tan 2 55

25-30-25cd. Log of test hole augered by State Geological Survey March 1956, in SE SW sec. 25, T. 25 S., R. 30 W., 1,900 feet south of Arkansas River. Surface altitude, 2,701.7 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Silt, sandy, road fill 2 2
Sand, very fine 1 3
Silt, black, waxy 1 4
Clay, green 3 7
Clay, blue green 5 12
Sand and gravel, silty, tan 28 40
Sand, fine to coarse, very silty, gray 30 70

25-30-25da1. Drillers log of test well in NE SE sec. 25, T. 25 S., R. 30 W., 75 feet south of Arkansas River, drilled March 1956 by Gestenslager Drilling Co. Thickness,
feet
Depth,
feet
Quaternary—Pleistocene    
Recent—Alluvium    
Silt, sandy, tan 4 4
Sand and gravel, very coarse 38 42
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Sand, fine to coarse, cemented 2 44

25-30-25da2. Sample log of test hole 31 drilled by U. S. Bureau of Reclamation March 1956, in NW cor. NE SE sec. 25, T. 25 S., R. 30 W. Surface altitude, 2,697.0 feet. Thickness,
feet
Depth,
feet
Quaternary—Pleistocene    
Recent—Alluvium    
Sand, fine, very silty, gray 4.5 4.5
Sand, fine to coarse, and fine to coarse gravel 35.5 40
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Sand, fine to coarse, and fine to medium gravel; contains some silt and some lime-cemented streaks 16 56
Silt, sandy, very calcareous, light gray to gray tan; contains some sand and gravel streaks 28.3 84.3
Sand, fine to coarse, and fine gravel; contains some calcareous silty tan clay streaks 10 94.3
Silt, clayey, very sandy, calcareous, tan; contains some sand streaks 15 109.3
Sand, fine to coarse; contains some calcareous tan silt streaks 10 119.3
Silt, clayey, very sandy, calcareous, light gray tan 10 129.3
Sand, fine to coarse; contains many calcareous tan silt streaks 5 134.3
Silt, clayey, sandy, calcareous, gray tan; contains some sand and gravel streaks 5 139.3
Sand, fine to coarse, and fine gravel; contains some silty tan clay streaks and much Cretaceous-derived material 25 164.3
Silt, sandy, calcareous, light tan; contains some sand and gravel streaks 5 169.3
Sand, fine to coarse, and fine gravel; contains some tan silt streaks and much Cretaceous-derived material 12.7 182
Cretaceous—Gulfian    
Carlile shale (?)    
Shale, calcareous, dark gray 4.8 186.8

25-30-29aa. Sample log of test hole 5 drilled by U. S. Bureau of Reclamation February 1956, in NE cor. sec. 29, T. 25 S., R. 30 W. Surface altitude, 2,722.7 feet. Thickness,
feet
Depth,
feet
Quaternary—Pleistocene    
Recent—Alluvium    
Sand, fine to medium, very silty, gray 2 2
Sand, fine to coarse 8 10
Sand, fine to coarse, and fine to coarse gravel 12.5 22.5
Silt, very sandy, calcareous, clayey, light tan 8.5 31
Sand, fine to coarse, and fine to medium gravel 1.5 32.5
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Silt, sandy, calcareous, gray tan 4.5 37
Sand, fine to coarse, and fine gravel; contains some silt streaks 13 50
Sand, fine to coarse; contains streaks of gray-tan to tan calcareous sill at top and at base 32 82
Silt, very sandy, calcareous, pink tan to gray tan at base; contains some sand streaks and some lime-cemented streaks 33 115
Sand, fine to coarse, and some fine gravel 6 121
Silt, very sandy, calcareous, gray tan 9 130
Sand, fine to coarse; contains some tan silt streaks and some clay near base 20 150
Silt, very sandy, calcareous, gray tan; contains some tan clay streaks near base 30 180
Sand, fine to coarse, and some fine gravel; contains calcareous tan silt streaks at top, tan clay streaks near base, and some Cretaceous-derived pebbles 10 190
Sand, fine to coarse, and fine to medium gravel; contains much Cretaceous-derived material 11 201
Cretaceous—Gulfian    
Carlile shale (?)    
Shale, calcareous, dark gray 9 210

25-30-36ba. Log of test hole augered by State Geological Survey March 1956, in NE NW sec. 36, T. 25 S., R. 30 W., 2,700 feet south of Arkansas River in sand dunes. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Sand, fine to coarse, gray 3 3
Sand, fine, yellow 2 5
Sand, fine to coarse; contains much coarse gravel 8 13
Sand and gravel; contains some silt 6 19
Silt, sandy, tan 16 35

25-30-36dc. Sample log of test hole 11 drilled by U. S. Bureau of Reclamation March 1956, in SE cor. SW SE sec. 36, T. 25 S., R. 30 W. Surface altitude, 2,735.2 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Sand, fine to medium, very silty, brown 7 7
Silt, sandy, calcareous, light gray 2.3 9.3
Silt, sandy, tan 5 14.3
Silt, sandy, calcareous, gray tan 5 19.3
Sand, fine to coarse, and fine to medium gravel 16.2 35.5
Silt, sandy, calcareous, pink tan to gray tan at base 23.8 59.3
Sand, fine to coarse, and fine gravel, silty 5 64.3
Silt, sandy, calcareous, light gray tan 7.7 72
Sand, fine to coarse; contains some fine gravel, some calcareous tan silt streaks, and some lime-cemented streaks 13 85
Silt, sandy, calcareous, gray tan 4.3 89.3
Sand, fine to coarse; contains some fine gravel at base, some sandy tan silt, and some lime-cemented streaks 10 99.3
Silt, sandy, clayey, gray tan; contains some sand streaks 7.7 107
Clay, silty, calcareous, gray and tan 7.3 114.3
Sand, fine to coarse; contains many calcareous silty tan clay streaks 37 151.3
Clay, silty, calcareous, gray tan 3 154.3
Sand, fine to coarse; contains some fine to medium gravel, many calcareous tan silt streaks, and much Cretaceous-derived material 53.7 208
Cretaceous—Gulfian    
Carlile shale (?)    
Shale, calcareous, dark gray 1.3 209.3

25-31-11cc. Drillers log of test hole for irrigation well in SW cor. sec. 11, T, 25 S., R. 31 W. Drilled by E. W. Henkle Co., 1948. Surface altitude, 2,765.3 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Soil 5 5
Clay, yellow, some gravel 9 14
Gravel, medium to coarse, loose 28 42
Clay, yellow 2 44
Gravel, medium to coarse 9 53
Clay, sandy, yellow, some caliche and gravel 23 76
Clay, yellow 9 85
Sand, fine 11 96
Clay, yellow, tight 15 111
Sand, fine, silty 26 137
Clay, sandy, yellow 22 159
Gravel, fine 18 177
Cretaceous—Gulfian    
Carlile shale (?)    
Shale, blue 4 181

25-31-13ba. Log of test hole augered by State Geological Survey March 1956, in NE NW sec. 13, T. 25 S., R. 31 W., 4,200 feet north of Arkansas River. Surface altitude, 2,762.0 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Silt, yellowish gray 6 6
Silt, light gray, tough, very calcareous 4 10
Clay, greenish to yellowish gray, compact 3 13
Sand, fine to medium, silty 2 15
Sand, fine to medium; contains black clay layers 3 18
Sand, fine to coarse 13 31
Clay 1 32
Sand, coarse, silty, clayey 6 38
Sand, coarse, silty; contains cemented zones 30 68

25-31-13bd. Log of test hole augered by State Geological Survey March 1956, in SE NW sec. 13, T. 25 S., R. 31 W., 3,000 feet north of Arkansas River. Surface altitude, 2,755.4 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Silt, yellow; contains gray-white caliche nodules 12 12
Sand, coarse; contains some fine gravel 7 19
Sand, coarse; contains some silt and fine sand 4 23
Gravel, fine, and coarse sand 46 69

25-31-13ca3. Log of test hole augered by State Geological Survey March 1956, in NE SW sec. 13, T. 25 S., R. 31 W., 1,100 feet north of Arkansas River. Surface altitude, 2,744.2 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Silt, road fill 3 3
Gravel, fine to medium, and coarse sand 44 47
Gravel and sand; contains clay zones 1 48
Gravel 7 55
Clay, sandy, silty 3 58

25-31-13ca4. Log of test hole augered by State Geological Survey March 1956, in NE SW sec. 13, T. 25 S., R. 31 W., 2,000 feet north of Arkansas River. Surface altitude, 2,744.2 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Sand, medium, brown, well sorted 3 3
Sand, coarse; contains some fine gravel 5 8
Gravel, fine to medium; contains coarse sand 45 53
Gravel, fine to medium; contains some cemented zones 5 58

25-31-13cc. Log of test hole augered by State Geological Survey March 1956, in SW SW sec. 13, T. 25 S., R. 31 W., 500 feet north of Arkansas River. Surface altitude, 2,742.6 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Soil 1 1
Sand, silty, brown 3 4
Sand and gravel, silty 5 9
Sand and gravel 30 39
Clay (determined from action of drill) 1 40

25-31-22bb. Sample log of test hole 3 drilled by U. S. Bureau of Reclamation February 1956, in NW cor. sec. 22, T. 25 S., R. 31 W. Surface altitude, 2,783.7 feet. Thickness,
feet
Depth,
feet
Quaternary—Pleistocene    
Terrace deposits    
Sand, fine to coarse, silty 5 5
Sand, fine to coarse, and fine gravel, coarse at base 20.5 25.5
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Silt, sandy, calcareous, pink tan to gray tan; contains some lime-cemented streaks 9 34.5
Sand, fine to medium; contains some gray-tan calcareous silt streaks 5 39.5
Silt, sandy, calcareous, gray tan to tan; contains some sand streaks 20 59.5
Sand, fine to coarse; contains some streaks of silty tan clay 5 64.5
Sand, fine to coarse, and fine to medium gravel; contains some calcareous tan silt streaks at 79.5 to 96.5 feet 32 96.5
Silt, sandy, calcareous, gray tan 1.5 98
Sand, fine to coarse; contains streaks of calcareous gray-tan to tan silt and clay 31.5 129.5
Silt, very sandy, tan gray to tan; contains some tan clay at base 10 139.5
Sand; fine to coarse, and fine gravel; some tan silt and clay streaks and many Cretaceous-derived pebbles 30 169.5
Silt, sandy, calcareous, pink tan; contains some sand streaks 11.5 181
Silt, sandy, very calcareous, tan gray; contains many clay streaks 19 200
Cretaceous—Gulfian    
Carlile shale (?)    
Shale, calcareous, dark gray 4.5 204.5

25-31-24bb1. Log of test hole augered by State Geological Survey March 1956, in NW NW sec. 24, T. 25 S., R. 31 W., 300 feet south of Arkansas River. Surface altitude, 2,745.8 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Silt, road fill 3 3
Sand, coarse 5 8
Sand, coarse; contains some medium gravel 20 28
Gravel, fine, sandy; contains some medium and coarse gravel 8 36
Gravel; contains hard zones 2 38
Gravel, fine to medium 7 45
Siltstone, clayey, calcareous, tough 3 48

25-31-24bb2. Log of test hole augered by State Geological Survey March 1956, in NW NW sec. 24, T. 25 S., R. 31 W., 600 feet south of Arkansas River. Surface altitude, 2,743.7 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Silt, road fill 2 2
Sand, medium to coarse, and fine gravel 6 8
Gravel, fine, and coarse sand 18 26
Clay, sandy, reddish brown 1 27

25-31-24bb3. Log of test hole augered by State Geological Survey March 1956, in NW NW sec. 24, T. 25 S., R. 31 W., 750 feet south of Arkansas River. Surface altitude, 2,743.3 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Sand 3 3
Sand, coarse, and fine gravel 5 8
Gravel, fine to medium, sandy 34 42
Clay, sandy, calcareous, light gray to white 1 43

25-31-24bc1. Log of test hole augered by State Geological Survey March 1956, in SW NW sec, 24, T. 25 S., R. 31 W., 1,100 feet south of Arkansas River. Surface altitude, 2,745.1 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Soil, road fill 2 2
Sand, fine to medium, clayey 2 4
Sand, medium to coarse; contains much fine to medium gravel 14 18
Cemented zone (determined from action of drill) 1 19
Gravel, medium to coarse, sandy 14 23
Sand and gravel, cemented 30 53
Gravel and, sand; contains thin cemented zones 15 68

25-31-24bc2. Log of test hole augered by State Geological Survey March 1956, in SW NW sec. 24, T. 25 S., R. 31 W., 1,400 feet south of Arkansas River. Surface altitude, 2,746.5 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Silt, sandy, road fill 3 3
Silt, clayey, and fine sand 5 8
Sand, coarse; contains some fine gravel 5 13
Gravel, fine to medium; contains some sand 24 37
Hard zone (no samples) 1 38
Sand, fine to coarse, and fine gravel 13 51
Gravel, medium to fine 2 53
Gravel, medium to fine; contains tough streaks 15 68

25-31-24dd. Sample log of test hole 4 drilled by U. S. Bureau of Reclamation February 1956, in NE cor. SE SE sec, 24, T. 25 S:, R. 31 W. Surface altitude, 2,748.3 feet. Thickness,
feet
Depth,
feet
Quaternary—Pleistocene    
Terrace deposits    
Sand, fine to coarse, silty 2 2
Silt, sandy, calcareous, gray 2.4 4.4
Sand, fine to coarse, and fine to coarse gravel; contains many cobbles of caliche 17.2 21.6
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Silt, sandy, calcareous, light tan 2 23.6
Sand, fine to coarse; contains some fine gravel, a streak of calcareous tan silt, and some lime-cemented streaks 31.4 55
Silt, sandy, calcareous, gray tan to tan 9 64
Sand, fine to coarse; contains some calcareous tan silt streaks and some lime-cemented streaks 5 69
Silt, very sandy, calcareous, pink tan; contains some lime-cemented streaks 15 84
Sand, fine to coarse; contains fine gravel in upper part and some calcareous tan silt streaks 25 109
Silt, very sandy, very calcareous, gray tan to tan; contains some lime-cemented streaks 20 129
Sand, fine to coarse; contains some fine gravel, some calcareous tan silt streaks, and some lime-cemented streaks 15 144
Silt, very sandy, calcareous, light tan; contains some sand streaks and some tan clay streaks near base 30 174
Sand, fine to coarse, silty 5 179
Silt, very sandy, calcareous, tan; contains some clay streaks at 189 feet 20 199
Sand, fine to coarse; contains some fine gravel at base, some calcareous tan silt streaks, and many Cretaceous-derived pebbles 15 214
Silt, sandy, calcareous, tan; contains some Cretaceous-derived pebbles 10 224
Cretaceous—Gulfian    
Carlile shale (?)    
Shale, calcareous, dark gray 5 229

26-27-8bc. Sample log of test hole 27 drilled by U. S. Bureau of Reclamation March 1956, in NW cor. SW NW sec. 8, T. 26 S., R. 27 W. Surface altitude, 2,594.4 feet. Thickness,
feet
Depth,
feet
Quaternary—Pleistocene    
Recent—Alluvium    
Silt, very sandy, gray brown 2.5 2.5
Silt, sandy, calcareous, gray 2.5 5
Sand, fine to coarse, and fine to coarse gravel 30.3 35.3
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Silt, very sandy, calcareous, pink tan to gray tan; contains some clay streaks at 59.1 to 69.1 feet and some sand streaks 38.8 74.1
Sand, fine to coarse; contains some clayey tan silt streaks 11.9 86
Silt, very clayey, sandy, calcareous, gray tan to tan 30 116
Clay, silty, sandy, calcareous, gray tan; contains some sand streaks 8.1 124.1
Sand, fine to coarse; contains some silty tan clay streaks 15 139.1
Sand, fine to coarse, and fine gravel; contains some tan silt near base and much Cretaceous-derived material 37.9 177
Cretaceous—Gulfian    
Carlile shale (?)    
Shale, calcareous, dark gray 2.1 179.1

26-28-1bb. Sample log of test hole 26 drilled by U. S. Bureau of Reclamation March 1956, in NW cor. sec. 1, T. 26 S., 28 W. Surface altitude, 2,742.0 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Silt, sandy, gray brown 1 1
Silt, calcareous, tan gray 4 5
Silt, sandy, calcareous, gray tan to tan 20.6 25.6
Silt, sandy, calcareous, pink tan to gray tan 34 59.6
Sand, fine, silty 3 62.6
Silt, very sandy, very calcareous, light gray to pink tan; contains some sand streaks and some lime-cemented streaks 24.9 87.5
Sand, fine to coarse, and fine to coarse gravel; contains some lime-cemented streaks 5.5 93
Silt, sandy, calcareous, light tan; contains some lime-cemented streaks 3.5 96.5
Sand, fine to coarse, and fine gravel, silty; contains some lime-cemented streaks 6.5 103
Silt, sandy, calcareous, pink tan to gray tan; contains some sand streaks 21.6 124.6
Sand, fine' to coarse, silty; contains some lime-cemented streaks 11.4 136
Silt, sandy, calcareous, red tan; contains some sand streaks 8.6 144.6
Sand, fine to coarse; contains some calcareous tan silt streaks 30 174.6
Silt, sandy, very calcareous, light tan gray; contains some lime-cemented streaks 15 189.6
Sand, fine to medium; contains many calcareous tan silt streaks 27.4 217
Silt, clayey, sandy, calcareous, tan 2 219
Sand, fine to medium; contains some calcareous tan silt streaks 12 231
Silt, clayey, very sandy, calcareous, tan 13.6 244.6
Clay, silty, calcareous, tan; contains some sand streaks 5 249.6
Sand, fine to coarse; contains some clayey tan silt streaks 10 259.6
Silt, clayey, calcareous, green tan; 'contains some sand streaks 5 264.6
Sand, fine to coarse; contains some silty gray-tan clay streaks and some lime-cemented streaks 15 279.6
Sand, fine to coarse, and fine gravel; contains some tan silt and some Cretaceous-derived material 15 294.6
"Mortar bed", lime-cemented silt and sand, light tan 12.4 307
Silt, clayey, sandy, calcareous, light gray tan; contains some lime-cemented streaks 7.6 314.6
Sand, fine to coarse, and fine gravel; contains some silty tan clay streaks and much Cretaceous-derived material 10 324.6
Clay, silty, sandy, light brown 3 327.6
Cretaceous—Gulfian    
Carlile shale (?)    
Shale, calcareous, dark gray 2 329.6

26-28-5bb. Sample log of test hole 24 drilled by U. S. Bureau of Reclamation March 1956, in NE cor. NW NW sec. 5, T. 26 S., R. 28 W, Surface altitude, 2,764.0 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Silt, sandy, gray brown 1.3 1.3
Silt, sandy, calcareous, tan 8.5 9.8
Silt, very sandy, very calcareous, pink tan to gray tan 28.2 38
Sand, fine, very silty, calcareous, brown 5.5 43.5
Silt, very sandy, very calcareous, pink tan to gray tan 24.5 68
Sand, fine to coarse, and fine to medium gravel; contains some tan silt 9 77
Silt, very sandy, calcareous, light tan 16 93
Sand, fine to coarse, and fine gravel 3 96
Silt, very sandy, calcareous, pink tan 11 107
Sand, fine to coarse, silty; contains some lime-cemented streaks 14 121
Silt, sandy, calcareous, light gray tan 7 128
Sand, fine to coarse 5 133
Silt, very clayey, sandy, calcareous, gray tan 6.8 139.8
Sand, fine to coarse 26.7 166.5
Silt, sandy, very calcareous, gray white 8.3 174.8
Sand, very fine to fine, very silty; contains some lime-cemented streaks 20 194.8
Silt, very clayey, sandy, calcareous, light gray tan 17.7 212.5
Sand, fine to coarse; contains some tan silt and day 27.3 239.8
Clay, silty, sandy, calcareous, gray tan 2.2 242
Cretaceous—Gulfian    
Carlile shale (?)    
Shale, calcareous, dark gray 7.8 249.8

26-28-10cc. Sample log of test hole 22 at SW cor. sec. 10, T. 26 S., R. 28 W., Gray County, drilled by State and Federal Geological Surveys, 1941. Surface altitude, 2,621.8 feet. Thickness,
feet
Depth,
feet
Soil, sandy, dark 0.5 0.5
Quaternary—Pleistocene    
Recent—Alluvium    
Sand, fine to medium, limy, gray 4.5 5
Gravel, medium to very coarse; contains pebbles as much as an inch in diameter 35 40
Sand, fine, to coarse gravel, brown 19.5 59.5
Tertiary—Pliocene    
Ogallala formation    
Silt and sand, fine, lime cemented, gray 3.5 63
Sand and gravel, limy, gray 4 67
Sand, fine to coarse, silty, tan and light gray 33 100
Silt and sand, fine, limy, tan 10 110
Sand, fine, to fine gravel, silty 20 130
Sand, coarse, to coarse gravel; contains granules and pebbles of limestone and sandstone 26 156
Cretaceous—Gulfian    
Carlile shale (?)    
Clay, silty, calcareous, yellow tan 7.5 163.5
Shale, dark gray to black; contains a few hard calcite veins 4.5 168
Shale, hard, light gray to white, and shale, calcareous, black 32 200
Shale, calcareous, light to' dark gray and black; contains thin bed of light-blue bentonite 10 210

26-28-11ca2. Log of test hole augered by State Geological Survey March 1956, in NE SW sec. 11, T. 26 S" R. 28 W., 1,200 feet north of Arkansas River. Surface altitude, 2,612 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Soil, road fill 4 4
Sand, medium, brown 2 6
Sand, fine to coarse; contains some gravel 18 24
Gravel, fine to coarse, silty and sandy 13 37
Sand and gravel, silty and clayey, light pinkish gray 8 45
Sand, clay; and silt, tough 8 53

26-28-11dc. Log of test hole augered by State Geological Survey March 1956, in SW SE sec. 11, T, 26 S., R. 28 W., 300 feet north of' Arkansas River. Surface altitude, 2,609.8 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Silt, yellowish gray 4 4
Sand, coarse, and fine to medium gravel 15 19
Gravel, medium to coarse, sandy, clean 26 45
Cemented layers (determined from action of drill) 2 47

26-28-12cc. Sample log of test hole 28 drilled by U. S. Bureau of Reclamation, March 1956, in SW cor. sec. 12, T, 26 S., R. 28 W, Surface altitude, 2,605.1 feet. Thickness,
feet
Depth,
feet
Quaternary—Pleistocene    
Recent—Alluvium    
Silt, very sandy, dark gray 3 3
Sand, fine to coarse, and fine to coarse gravel 33.5 36.5
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Silt, sandy, calcareous, pink tan to gray tan; contains some lime-cemented streaks 32.5 69
Sand, fine to coarse; contains some tan clay streaks near base and some calcareous tan silt streaks 50 119
Silt, clayey, sandy, calcareous, gray tan; contains some sand streaks and some lime-cemented streaks 10 129
Sand, fine to coarse, very silty 5 134
Silt, clayey, sandy, very calcareous, light tan gray; contains some lime-cemented streaks 14.3 148.3
Cretaceous—Gulfian    
Carlile shale (?)    
Shale, calcareous, dark gray 0.7 149

26-28-14ba. Log of test hole augered by State Geological Survey March 1956, in NE NW sec. 14, T. 26 S., R. 28 W., 600 feet south of Arkansas River. Surface altitude, 2,610.8 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Silt, road fill 4 4
Sand, medium to coarse, and brown clay 2 6
Gravel, medium to coarse, sandy 48 54
Sand, medium, silty; contains some gravel 7 61
Clay and silt, sandy, pinkish gray 2 63

26-28-14bd1. Log of test hole augered by State Geological Survey March 1956, in SE NW sec. 14, T. 26 S., R. 28 W., 1,800 feet south of Arkansas River. Surface altitude, 2,609.8 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Silt, road fill 2 2
Sand, medium to coarse; contains much gravel 11 13
Gravel, fine to medium, sandy 11 24
Sand, medium to coarse, silty, clayey 12 36
Sand, cemented 15 51
Sandstone; contains hard and soft layers 10 61

26-28-14bd2. Log of test hole augered by State Geological Survey March 1956, in SE NW sec. 14, T. 26 S., R. 28 W., 3,000 feet south of Arkansas River. Surface altitude, 2,609.8 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Silt, road fill, black 4 4
Clay, plastic, yellow 1 5
Gravel, medium to coarse, sandy 45 50
Sandstone; contains cemented layers 6 56
Sandstone, clayey, tough, pinkish gray 1 57

26-28-14ca. Log of test hole augered by State Geological Survey March 1956, in NE SW sec. 14, T. 26 S., R. 28 W., 4,300 feet south of Arkansas River. Surface altitude, 2,616.9 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Soil 3 3
Sand, fine to medium 22 25
Sandstone, clayey, tough, cemented 1 26

26-28-24cc. Sample log of test hole 29 drilled by U. S. Bureau of Reclamation March 1956, in SW cor. sec. 24, T. 26 S., R. 28 W. Surface altitude, 2,648.4 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Sand, fine to medium, silty 4 4
Silt, sandy, gray brown 1.5 5.5
Silt, calcareous, light gray tan 5 10.5
Silt, very sandy, calcareous, gray tan 13.8 24.3
Sand, fine to coarse, and fine to coarse gravel; contains a few calcareous tan silt streaks 100 124.3
Silt, very clayey, sandy, calcareous in lower part, tan to gray tan; contains some sand streaks 35 159.3
Sand, fine to coarse, very silty 2.7 162
Silt, sandy, very calcareous, light tan gray; contains some clay streaks and some lime-cemented streaks 9.5 171.5
Cretaceous—Gulfian    
Carlile shale (?)    
Shale, calcareous, dark gray 6.8 178.3

26-28-29bb. Sample log of test hole 17 drilled by U. S. Bureau of Reclamation March 1956, in NW cor. sec. 29, T. 26 S., R. 28 W. Surface altitude, 2,699.9 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Sand, fine, very silty, brown 1.5 1.5
Silt, sandy, gray brown 2.9 4.4
Silt, sandy, calcareous, light gray tan 3.6 8
Sand, fine to medium 24.5 32.5
Silt, sandy, very calcareous, light gray to tan; contains some sand streaks 11.9 44.4
Sand, fine to coarse, and fine to coarse gravel; contains some calcareous tan silt streaks 135 179.4
Silt, sandy, calcareous, pink tan 17.1 196.5
Silt, sandy, calcareous, light gray to tan; contains some tan clay streaks 7.9 204.4
Sand, fine to coarse, and fine gravel; contains some calcareous silt and much Cretaceous-derived material 11.1 215.5
Silt, sandy, calcareous, pink tan to gray tan; contains some lime-cemented streaks near base, and some sand streaks 16.5 232
Cretaceous—Gulfian    
Carlile shale (?)    
Shale, calcareous, dark gray 3 235

26-28-34bb. Sample log of test hole 23 at NW cor. sec. 34, T. 26 S., R. 28 W., Gray County, drilled by State and Federal Geological Surveys, 1941. Surface altitude, 2,671.5 feet. Thickness,
feet
Depth,
feet
Quaternary—Recent    
Dune sand    
Soil, sandy, dark 3 3
Sand, fine, silty, brown 7 10
Terrace gravels    
Sand, medium, to fine gravel, brown; contains snails and shell fragments 10 20
Silt to coarse sand, tan 4 24
Sand, medium, to medium gravel, brown 6 30
Sand, coarse, to very coarse gravel, poorly sorted 48 78
Tertiary—Pliocene    
Ogallala formation    
Silt and sand, fine, limy; light gray 3 81
Sand, coarse, to very coarse gravel 22 103
Gravel, fine to very coarse, brown 37 140
Silt and sand, fine, tan to buff; contains some gravel 43 183
Gravel, fine to coarse, brown 17 200
Silt and sand, fine to coarse, tan 10 210
Silt and sand, limy, light gray 5 215
Cretaceous—Gulfian    
Carlile shale (?)    
Shale, calcareous, black 5 220

26-28-36cc. Sample log of test hole 30 drilled by U. S. Bureau of Reclamation March 1956, in SW cor. sec. 36, T. 26 S., R. 28 W. Surface altitude, 2,687.2 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Sand, fine, silty, light brown 4 4
Silt, calcareous, light tan 10.3 14.3
Silt, very sandy, tan 15 29.3
Sand, fine to coarse; contains some tan silt 15 44.3
Silt, very sandy, light tan to tan gray, very calcareous at base 21.7 66
Sand, fine to coarse, and fine to coarse gravel; contains some calcareous tan and black silt 23.3 89.3
Silt, sandy, very calcareous, light tan gray to pink tan 35 124.3
Sand, fine to coarse, and fine gravel; contains some calcareous tan silt streaks 12.7 137
Silt, clayey, sandy, calcareous, tan gray; contains some lime-cemented streaks 12.3 149.3
Sand, fine to coarse; contains some calcareous gray silt streaks 5 154.3
Clay, silty, sandy, calcareous, gray tan 5 159.3
Silt, clayey, sandy, calcareous, gray tan; contains some lime-cemented streaks 10 169.3
Sand, fine to very coarse; contains some silt 15 184.3
Silt, sandy; calcareous, pink tan; contains some sand streaks 15 199.3
Sand, fine to coarse; contains some calcareous tan silt streaks 5 204.3
Silt, sandy, calcareous, light tan; contains some fine sand streaks 7.7 212
Sand, fine to coarse, and fine gravel; contains some calcareous tan silt streaks, much Cretaceous-derived material, and some lime-cemented streaks 65.5 277.5
Cretaceous—Gulfian    
Carlile shale (?)    
Shale, calcareous, dark gray 1.8 279.3

26-29-2aa1. Log of test hole augered by State Geological Survey March 1956, in NE NE sec. 2, T. 26 S., R. 29 W., 1,300 feet north of Arkansas River. Surface altitude, 2,661.6 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Soil, silty 1 1
Clay, silty, reddish brown 9 10
Sand, medium to coarse 7 17
Gravel, fine to coarse, sandy, pinkish gray 33 50
Sand, fine to medium; contains hard and soft layers 9 59
Sand and gravel 9 68

26-29-2aa2. Log of test hole augered by State Geological Survey March 1956, in NE NE sec. 2, T. 26 S., R. 29 W., 500 feet north of Arkansas River. Surface altitude, 2,655.5 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Silt, yellowish gray 4 4
Sand, fine to medium 14 18
Gravel, medium to coarse, sandy 44 62
Cemented layers; drills slowly, no samples 4 66
Clay, silty, yellow; contains some fine sand 2 68

26-29-2ac. Log of test hole augered by State Geological Survey March 1956, in SW NE sec. 2, T. 26 S., R. 29 W., 500 feet south, of Arkansas River, Surface altitude, 2,656.3 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Silt, road fill 3 3
Sand, fine to medium 5 8
Gravel, medium to coarse; contains much sand 57 65
Clay, yellowish gray 3 68

26-29-2bb. Sample log of test hole 20 drilled by U. S. Bureau of Reclamation March 1956, in NE cor. NW NW sec. 2, T. 26 S., R. 29, W. Surface altitude, 2,655.4 feet. Thickness,
feet
Depth,
feet
Quaternary—Pleistocene    
Recent—Alluvium    
Sand, fine, very silty, brown 1.5 1.5
Silt, sandy, clayey, calcareous, dark gray 1.5 3
Sand, fine to coarse, and fine to coarse gravel 30 33
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Silt, clayey, sandy, tan; contains some lime-cemented streaks 6.5 39.5
Sand, fine to coarse, and fine to medium gravel; contains some tan silt and clay streaks and some lime-cemented streaks 34.7 74.2
Silt, sandy, clayey, calcareous, gray tan; contains some sand streaks 10 84.2
Sand, ,fine to coarse; contains fine gravel at 84.2 to 94.2 feet, some calcareous gray-tan silt streaks, and some silty tan clay streaks 25 109.2
Silt, sandy, clayey, calcareous, gray tan; contains some sand streaks 10 119.2
Clay, silty, sandy, calcareous, gray tan; contains some sand streaks 20 139.2
Sand, fine to coarse; contains some tan silt in upper part and some Cretaceous-derived material 20 159.2
Cretaceous—Gulfian    
Carlile shale (?)    
Shale, calcareous, dark gray 3.8 163

26-29-2ca1. Log of test hole augered by State Geological Survey March 1956, in NE SW sec. 2, T. 26 S., R. 29 W., 1,900 feet south of Arkansas River. Surface altitude, 2,651.3 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Soil and silt 1 1
Sand, medium to coarse, brown 7 8
Gravel, medium to coarse, sandy 18 26
Gravel, fine, sandy 22 48
Gravel, medium to coarse 3 51
Sand, fine to medium; contains some silt and gravel (hard and loose cemented layers) 14 65
Hard zone (no samples) 3 68

26-29-2cb. Log of test hole augered by State Geological Survey March 1956, in NW SW sec. 2, T. 26 S., R. 29 W., 2,900 feet south of Arkansas River. Surface altitude, 2,653.6 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Silt 3 3
Sand, fine 3 6
Gravel, coarse to medium 26 32
Silt and sand, medium (drilled slow) 8 40
Sand, medium to coarse; contains some gravel and silt 26 66
Clay, silt, and fine to medium sand 2 68

26-29-2cc. Log of test hole augered by State Geological Survey March 1956, in SW SW sec. 2, T. 26 S., R. 29 W., 4,000 feet south of Arkansas River. Surface altitude, 2,653.5 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Silt, sandy, road fill 2 2
Sand, medium to coarse; contains some fine gravel and silt 31 33
Sand and gravel; contains hard layers at 40 feet 32 65
Hard zone at 65 feet (no samples) 3 68

26-29-5dd. Sample log of test hole 16 drilled by U. S. Bureau of Reclamation March 1956, in SE cor. sec. 5, T. 26 S., R. 29 W. Surface altitude, 2,721.5 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Sand, fine, very silty, brown 16 16
Silt, sandy, calcareous, gray to tan 8 24
Sand, fine to coarse, and fine gravel; contains some calcareous tan silt streaks 21.5 45.5
Silt, sandy, calcareous, gray tan to pink tan; contains some sand streaks near base 18.5 64
Sand, fine to coarse; contains fine gravel near base and some calcareous gray-tan silt streaks 11 75
Silt, sandy, calcareous, pink tan 8 83
Sand, fine to coarse, and fine gravel; contains some calcareous tan silt streaks 6 89
Silt, sandy, calcareous, pink tan to gray; contains some sand streaks 15 104
Sand, fine to coarse; contains some calcareous gray-tan silt and tan clay streaks and some lime-cemented streaks 24 128
Clay, silty, sandy, calcareous, light gray tan 6 134
Sand, fine, silty 2 136
Clay, silty, sandy, calcareous, light gray tan; contains some lime-cemented streaks 13 149
Sand, fine to coarse, and fine gravel; contains some calcareous tan clayey silt streaks 10 159
Clay, sandy, light gray tan; contains some calcareous tan silt streaks 5 164
Sand, fine to coarse, and fine gravel; contains some silty tan clay streaks 5 169
Clay, silty, sandy, calcareous, gray tan; contains some sand streaks 20 189
Sand, fine to coarse, and fine to medium gravel; contains some silty tan, clay streaks and much Cretaceous-derived material 43 232
Silt, .sandy, calcareous, light gray tan; contains some clay 2 234
Sand, fine to coarse, and fine gravel; contains much calcareous clayey silt and much Cretaceous-derived material 6 240
Cretaceous—Gulfian    
Carlile shale (?)    
Shale, calcareous, dark gray 3 243

26-29-11cc. Sample log of test hole 19 drilled by U. S. Bureau of Reclamation March 1956, in SW cor. sec. 11, T. 26 S., R. 29 W. Surface altitude, 2,713.2 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Sand, fine, silty, gray tan 1.5 1.5
Silt, very sandy, gray 1.5 3
Sand, fine to medium 21.7 24.7
Silt, sandy, very calcareous, gray tan; contains some sand streaks 10 34.7
Sand, fine to coarse, and fine gravel; contains some calcareous tan silt streaks 27.3 62
Silt, sandy, very calcareous, gray tan .to pink tan; contains some sand streaks 17.7 79.7
Sand, fine to very coarse; contains fine to medium gravel near base, some calcareous gray and tan silt streaks, and some lime-cemented streaks 25 104.7
Silt, sandy, very calcareous, tan; contains some tan clay 10 114.7
Sand, fine to coarse; contains many calcareous sandy tan silt streaks 15 129.7
Silt, very clayey, tan; contains some fine to coarse sand streaks 5 134.7
Sand, fine to coarse; contains some fine to medium gravel at 144.7 to 149.7 feet and some calcareous clayey gray to tan silt streaks 25 159.7
Silt, clayey, sandy, calcareous, gray tan; contains some sand streaks 5 164.7
Sand, fine to coarse; contains some calcareous sandy tan silt streaks 5 169.7
Clay, silty, sandy, tan 5 174,7
Sand; fine to coarse, contains some fine to medium gravel at 179.7 to 194.7 feet, many silty tan clay streaks, many lime-cemented streaks near base, and much Cretaceous-derived material 39 213.7
Cretaceous—Gulfian    
Carlile shale (?)    
Shale, calcareous, gray 0.9 214.6

26-29-27aa. Sample log of test hole 18 drilled by U. S. Bureau of Reclamation March 1956, in NE cor. sec. 27, T. 26 S., R. 29 W. Surface altitude, 2,728.0 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Sand, fine, very silty, gray brown 9.4 9.4
Silt, sandy; very calcareous, gray tan 10 19.4
Sand, fine .to medium, contains some sandy tan silt streaks 17.6 37
Silt, sandy, very calcareous, gray tan 12.4 49.4
Sand, fine to medium, contains some calcareous gray-tan silt 10 59.4
Silt, very" sandy, calcareous, light tan 5 64.4
Sand, fine to coarse, and fine to medium gravel; contains some calcareous sandy tan silt streaks 90 154.4
Silt, sandy,. calcareous, gray; contains some sand and gravel streaks 5 159.4
Sand, fine to coarse, and fine gravel; contains some calcareous gray and tan silt streaks and some lime-cemented streaks 10 169.4
Silt, sandy, very calcareous, pink tan 10 179.4
Sand, fine to medium; contains much calcareous pink-tan silt 10 189.4
Silt, sandy, very calcareous, pink tan 5 194.4
Sand, fine to coarse, and fine to medium gravel; contains some tan silt and much Cretaceous-derived material 15 209.4
Silt, sandy, very calcareous, pink tan; contains some sand streaks 5 214.4
Sand, fine to medium; contains some calcareous tan silt streaks 10 224.4
Silt, very sandy, calcareous, pink tan to tan; contains some sand streaks 13.6 238
Sand, fine to coarse, and fine to medium gravel; contains some calcareous tan silt and much Cretaceous-derived material 23 261
Cretaceous—Gulfian    
Carlile shale (?)    
Shale, calcareous, gray 3.4 264.4

26-30-10cc. Sample log of test hole 9 drilled by U. S. Bureau of Reclamation February 1956, in SW cor. sec. 10, T. 26 S., R. 30 W. Surface altitude, 2,786.0 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Sand, fine, silty, brown 5 5
Silt, sandy, gray brown 3.5 8.5
Sand, fine, silty 1.5 10
Silt, sandy, calcareous, tan to gray tan near base 19.4 29.4
Sand, fine to medium; contains some silt streaks 10 39.4
Silt, sandy, calcareous, light gray tan 5 44.4
Sand, fine to coarse; contains some calcareous tan silt streaks 11.6 56
Sand, fine to coarse, and fine gravel; contains some silt and some lime-cemented streaks 10.5 66.5
Silt, sandy, calcareous, light gray tan 2.9 69.4
Sand, fine to coarse, and fine gravel; contains some tan calcareous silt streaks and some clay streaks 55 124.4
Sand, fine to very coarse; contains tan clay streaks at 133 to 134.4 feet and some calcareous tan silt streaks 26.6 151
Silt, very sandy, very calcareous, pink tan 3.4 154.4
Sand, fine to coarse; contains some fine gravel near base and some tan silt streaks 10 164.4
Silt, sandy, very calcareous, light gray tan 2.6 167
Sand, fine to coarse; contains some tan silt streaks 10 177
Silt, sandy, calcareous near base, gray tan; contains many clay streaks at 179.4 to 189.4 feet 22.4 199.4
Sand, fine to coarse; contains some tan clay streaks 20 219.4
Silt, sandy, calcareous, tan; contains many tan clay streaks 21.6 241
Sand, fine to very coarse; contains some lime-cemented streaks and some tan clay streaks 6 247
Silt, sandy, calcareous, light gray tan 14 261
Sand, fine to coarse, silty; contains some lime-cemented streaks 8.4 269.4
Sand, fine to coarse, and fine gravel; contains some silty tan clay streaks and much Cretaceous-derived material 21.6 291
Clay, very silty, sandy, calcareous, light gray tan 5 296
Sand, fine to coarse, and fine gravel; contains some silty tan clay streaks and much Cretaceous-derived material 31 327
Clay, silty, tan 2.4 329.4
Sand, fine to coarse, and fine gravel, very silty, cemented; contains much Cretaceous-derived material 7.6 337
Cretaceous—Gulfian    
Carlile shale (?)    
Shale, calcareous, dark gray 2.4 339.4

26-30-12cc. Sample log of test hole 10 drilled by U. S. Bureau of Reclamation February 1956, in SE cor. SW SW sec. 12, T. 26 S., R. 30 W, Surface altitude, 2,796.5 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Sand, fine, very silty, brown 3.5 3.5
Silt, sandy, calcareous, gray tan 4.5 8
Sand, fine to coarse; contains many tan silt streaks 21.1 29.1
Silt, sandy, calcareous at base, tan to gray tan at base 16.9 46
Sand, fine to medium; contains much calcareous tan silt in upper part 19 65
Silt, sandy, calcareous, light gray tan to pink tan 17 82
Sand, fine to coarse, and fine to coarse gravel; contains many calcareous tan silt streaks and some tan clay streaks 107.1 189.1
Silt, sandy, calcareous, gray tan 5 194.1
Sand, fine to coarse; contains some fine gravel at base and a few calcareous tan silt streaks 15 209.1
Silt, sandy, calcareous, gray tan to pink tan; contains some sand streaks, some lime-cemented streaks at 261.5 to 267.5 feet, and much tan clay at 267.5 to 273 feet 63.9 273
Sand, fine to coarse, and fine to coarse gravel; contains some silty tan clay streaks, lime-cemented streaks, and much Cretaceous-derived material 18.5 291.5
Cretaceous—Gulfian    
Carlile shale (?)    
Shale, calcareous, dark gray 7.6 299.1

26-30-17bb. Sample log of test hole 8 drilled by U. S. Bureau of Reclamation February 1956, in NW cor. sec. 17, T. 26 S., R. 30 W. Surface altitude, 2,779.4 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Sand, fine to medium, very silty, calcareous at base, brown 5 5
Silt, sandy, calcareous, gray to tan 9.3 14.3
Silt, sandy, green gray 3.7 18
Sand, fine; contains some medium to coarse sand 4 22
Silt, very sandy, calcareous, tan gray 6 28
Sand, fine to coarse, silty 2 30
Silt, sandy, calcareous, light gray tan 7 37
Sand, fine to coarse, and fine gravel 5.5 42.5
Silt, sandy, light gray tan 6 48.5
Sand, fine to coarse, and fine to medium gravel; contains some silt and some cemented streaks 29.5 78
Clay, sandy, silty, light brown and gray 2 80
Sand, fine to coarse, and fine gravel; contains some silt near base and lime-cemented streaks 26 106
Silt, very sandy, calcareous, light tan to gray tan; contains some tan clay at 109 to 119.3 feet 22 128
Sand, fine to coarse, and fine gravel; contains some lime-cemented streaks 11.3 139.3
Silt, sandy, very calcareous, light gray tan; contains some lime-cemented streaks 25 164.3
Sand, fine to coarse; contains some calcareous tan silt streaks 15 179.3
Silt, very sandy, clayey, calcareous, light tan 5.7 185
Sand, fine to coarse, and fine gravel 3 188
Silt, sandy, calcareous, gray tan; contains much tan clay 13 201
Sand, fine to coarse, and fine gravel; contains some lime-cemented streaks 13.3 214.3
Silt, sandy, calcareous, clayey, gray tan 16.7 231
Sand, fine to coarse; contains fine gravel near base and is very silty at 231 to 239.3 feet 15 246
Silt, sandy, calcareous, light gray tan 9 255
Sand, fine to coarse, and fine to medium gravel; contains some silty clay near base, some cemented streaks, and much Cretaceous-derived gravel 41 296
Silt, sandy, very calcareous, light tan gray 1.5 297.5
Cretaceous—Gulfian    
Carlile shale (?)    
Shale, calcareous, dark gray 1.8 299.3

26-81-1bb. Sample log of test hole 6 drilled by U. S. Bureau of Reclamation February 1956, in NE cor. NW NW sec. 1, T. 26 S., R. 31 W. Surface altitude, 2,783.9 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Sand, fine, very silty, gray 2 2
Silt, very sandy, clayey, gray 4 6
Silt, very sandy, light tan 3 9
Sand, very fine, grading to coarse at base 8 17
Silt, sandy, very calcareous, pink tan 6 23
Sand, fine to coarse; contains, tan clayey silt streaks at 34 to 39 feet and some fine gravel at 48 to 49 feet 26 49
Sand, fine to coarse, and much fine to coarse gravel; contains some sandy tan silt streaks at 69 to 84 feet 48 97
Silt, sandy, calcareous, gray tan 2 99
Sand, fine to coarse, and fine to medium gravel; contains some sandy tan silt streaks 15 114
Silt, sandy, calcareous, tan; contains some sand streaks 5 119
Sand, fine to coarse; contains many calcareous tan silt streaks 10 129
Silt, very sandy, calcareous, clayey, gray tan; contains some lime-cemented streaks 18 147
Sand, fine to coarse, and fine gravel; contains some silt 5 152
Silt, very sandy, calcareous, light tan 6 158
Sand, fine to coarse; contains much calcareous tan silt 21 179
Sand, fine to medium, silty 5 184
Silt, sandy, calcareous, gray tan 6 190
Sand, fine to coarse; contains much calcareous tan silt and some lime-cemented streaks 19 209
Silt, very sandy, calcareous, gray tan to light tan; contains some tan clay streaks near base and some sand streaks 20 229
Sand, fine to coarse, and fine gravel, silty 4 233
Silt, calcareous, gray tan; contains some sand and fine gravel streaks 6 239
Sand, fine to coarse, silty; contains some lime-cemented streaks and some Cretaceous-derived pebbles 3 242
Silt, very sandy, calcareous, light gray tan 7 249
"Mortar bed", lime-cemented silt, sand, and gravel, tan white; contains many Cretaceous-derived pebbles 13 262
Cretaceous—Gulfian    
Carlile shale (?)    
Shale, calcareous, dark gray 7 269

26-31-4cc. Drillers log of irrigation well in SW SW sec. 4, T. 26 S., R. 31 W., drilled by Minter Drilling Co. Surface altitude, 2,818.9 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary—Pleistocene and Pliocene    
Silt 52 52
Sand and gravel, coarse, limy clay streaks 10 62
Clay, sandy 2 64
Sand and gravel, some clay 16 80
Clay, sandy; sand and gravel streaks 5 85
Sand, fine, and some gravel, clay streaks 24 109
Caliche, hard 1 110
Sand and gravel, cemented streaks 11 121
"Mortar" bed, very sandy 3 124
Sand and gravel, loose 6 130
Sand and gravel, clay streaks 6 136
Clay, sandy, cemented streaks 3 139
Clay, sandy, sand, and gravel streaks 12 151
Sand and gravel, loose 2.5 153.5
"Mortar" bed 1 154.5
Sand and gravel, limy, loose 8.5 163
Clay, sandy, thin sand streaks 7 170
Sand, fine, cemented streaks 5 175
Sand and gravel, cemented streaks at 185 to 190 and 195 to 200 feet 25 200

26-81-12cd. Sample log of test hole 7 drilled by U. S. Bureau of Reclamation February 1956, in SW cor. SE SW sec. 12, T. 26 S., R. 31 W. Surface altitude, 2,796.1 feet. Thickness,
feet
Depth,
feet
Quaternary and Tertiary    
Undifferentiated Pleistocene and Ogallala (Pliocene)    
Sand, fine, very silty, gray 2 2
Silt, sandy, light to dark tan 22 24
Silt, sandy, calcareous, light gray tan 2 26
Sand, fine to medium 3 29
Silt, very sandy, very calcareous, gray tan 15 44
Sand, fine to coarse, and fine to medium gravel 10 54
Silt, sandy, calcareous, light tan 5 59
Sand, fine to coarse; contains some fine to medium gravel at base 10 69
Silt, very sandy, calcareous, tan gray 5 74
Sand, fine to coarse, and fine gravel; contains some silt at base and some lime-cemented streaks 17 91
Silt, very sandy, calcareous, gray tan 2 93
Sand, fine to coarse, and fine gravel, silty 7 100
Silt, sandy, calcareous, tan; contains some lime-cemented sand streaks 11 111
Sand, fine to coarse, and fine to medium gravel; contains some cemented streaks 22 133
Silt, sandy, very calcareous, pink tan to gray tan 18 151
Sand, fine to coarse; contains lime-cemented streaks 2 158
Silt, sandy, very calcareous, gray tan 18 166
Sand, fine to very coarse, silty 7 173
Silt, sandy, calcareous, tan; contains some brown clay streaks 6 179
Sand, fine to coarse, and fine gravel; contains some calcareous clayey tan silt streaks 22 201
Silt, sandy, calcareous, clayey, tan 23 224
Sand, fine to coarse; contains some calcareous tan silt streaks 9 233
Silt, sandy, calcareous, gray tan 2 235
Sand, fine to coarse, and fine gravel, contains much Cretaceous-derived gravel 14 249
Silt, very sandy, very calcareous, light gray tan 10 259
Sand, fine to coarse, and fine gravel; contains much clayey tan silt at 259 to 269 and 279 to 284 feet and some lime-cemented streaks 35 294
Silt, very sandy, very calcareous, light tan; contains some sand and streaks of Cretaceous-derived gravel near base 16.5 310.5
Cretaceous—Gulfian    
Carlile shale (?)    
Shale, calcareous, dark gray 7.5 318

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Kansas Geological Survey, Geology
Placed on web Sept. 10, 2017; originally published July, 1958.
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