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Geohydrology of Hamilton and Kearny Counties

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Well Logs

Listed in the following pages are the logs of 70 wells and-test holes in Hamilton and Kearny counties, including 27 test holes drilled by the State and Federal Geological Surveys (1-27), 32 water wells (28-59), and 11 oil- and gas-test wells (60-70). The locations of the test holes are shown in figure 2 and most of the wells are shown on plate 2. About two-thirds of the logs were made by well drillers, and many of the drillers' rock names have been changed to conform with geologic terminology. "Gyp" or "gyp rock" has been interpreted to mean caliche, and "soapstone" has been changed to shale or clay. The term "sandrock" is used by drillers to describe a rock, that is so well consolidated that no casing is needed to prevent caving. In the Dakota and Cheyenne formations this has been interpreted to mean sandstone and in the Tertiary and Quaternary deposits it implies a consolidated sand and gravel deposit (often called mortar bed). Much of the Ogallala formation has been logged by well drillers as clay, but in those wells from which cuttings were available for study it was found that much of the so-called clay was silt.

1. Log of test hole 1 in the SE SW sec. 32, T. 20 S., R. 34 W. (Scott county), drilled by State and Federal Geological Surveys, 1940. Surface altitude, 3,089.5 feet. (Authority, samples studied by Perry McNally, H. A. Waite, Bruce F. Latta, and Thad McLaughlin.) Thickness,
feet
Depth,
feet
Soil, sandy, dark1.51.5
Undifferentiated Pleistocene deposits
Silt and sand, fine; limy; tan; containing gastropods1112.5
Silt and sand, fine; pinkish-brown; containing thin limy zones5.518
Caliche, soft, tan to light gray624
Sand, fine to medium, pinkish-brown, containing some silt2.526.5
Caliche, soft, tan-gray; and clay, limy6.533
Clay, tan-gray538
Sand, medium, to gravel, medium; brown16.554.5
Ogallala formation (?)
Sand and gravel; lime-cemented, gray458.5
Sand, medium, to gravel, coarse; brown; contains a few lime-cemented zones3795.5
Silt, sandy, light gray-yellow8103.5
Silt, sandy, lime-cemented, soft, light gray; contains lenses of brown, fine to medium sand and fragments of Celtis willistoni (?) and Biorbia fossilia (?)15.5119
Niobrara formation
Smoky Hill chalk member
Chalk, silty, soft, light yellow to light gray15134
Shale, chalky, soft, dark blue-gray; contains a few fragments of white bentonite6140
Shale, chalky, dark blue-gi-ay; contains interbedded lighter gray hard sandy shale14154
Fort Hays limestone member
Shale, chalky, dark gray to white10164
Chalk, light gray to white3167
Shale, chalky, light gray to dark gray5172
Chalk, light gray to white12184
Shale, chalky, dark gray1185
Chalk, light gray to white15200
Shale, chalky, light gray to white19219
Carlile shale
Codell sandstone and Blue Hill shale members
Shale, sandy, nonealeareous, dark gray33252
Shale, sandy, light to dark gray1.5253.5
Shale, clayey, noncalcareous, dark gray to black16.5270
2. Log of test hole 2 at NE corner sec. 9, T. 21 S., R. 36 W., drilled by State and Federal Geological Surveys, 1941. Surface altitude, 3,220.6 feet. (Authority, samples studied by Perry McNally and Thad McLaughlin.) Thickness,
feet
Depth,
feet
Soil, sandy, dark1.51.5
Undifferentiated Pleistocene deposits
Clay, sandy, tan2.54
Clay, sandy, tan, and caliche812
Sand, medium, and gravel, fine10.522.5
Clay, silty and fine sandy, tan628.5
Ogallala formation (?)
Sand, coarse, and gravel, coarse; brown59.588
Silt, and sand, fine; light gray1098
Niobrara formation
Shale, chalky, yellow12110
Shale, chalky, white20130
3. Log of test hole 3 at SW corner sec. 18, T. 21 S., R. 38 W., drilled by State and Federal Geological Surveys, 1941. Surface altitude, 3,421.5 feet. (Authority, samples studied by Perry McNally and Thad McLaughlin.) Thickness,
feet
Depth,
feet
Soil, sandy, brown1.51.5
Undifferentiated Pliocene and Pleistocene deposits
Silt, gray to tan1.53
Clay, sandy, tan5.58.5
Sand, medium, to gravel, fine; dark brown2.511
Caliche, tan to white314
Sand and gravel; consolidated; brown1125
Sand and gravel1540
Clay, sandy, tan343
Sand, coarse, to gravel, coarse; brown3679
Sand, medium, to gravel, coarse; brown1897
Clay, sandy, tan299
Caliche, gray to brown7106
Clay, sandy, light gray to tan19125
Sand and gravel; contains silt and fine sand18143
Silt and sand, fine; gray2145
Sand and gravel; brown10155
Silt and sand, fine; tan15170
Sand, medium, to gravel, medium; brown33203
Sand, medium, to gravel, fine; brown14217
Niobrara formation
Chalk, white13230
4. Log of test hole 4 at NE corner sec. 18, T. 21 S., R. 39 W., drilled by State and Federal Geological Surveys, 1941. Surface altitude, 3,480.4 feet. (Authority, samples studied by Perry McNally and Thad McLaughlin.) Thickness,
feet
Depth,
feet
Soil, dark33
Undifferentiated Pliocene and Pleistocene deposits
Silt, tan58
Silt, sand, and gravel; gray10.518.5
Gravel, fine to coarse; brown18.537
Silt and sand; tan643
Sand, medium, to gravel, coarse; brown649
Clay, sandy, tan5.554.5
Sand, coarse, to gravel, coarse; brown20.575
Clay, silty, tan883
Silt and sand; limy; gray588
Gravel, fine to coarse, brown694
Silt, limy, and sand; tan20114
Gravel, fine to coarse, brown18.5132.5
Sand, coarse, to gravel, coarse; brown9.5142
Clay, silty, gray to pale green4146
Sand, gray to pale green1147
Silt and sand; limy; tan18165
Sand, coarse, to gravel, coarse; brown10175
Silt and sand; limy; gray to tan3178
Gravel, fine to coarse, brown15193
Clay, silt, and sand, fine; tan2195
Gravel, fine to coarse, brown11.5206.5
Clay, silty, gray8214.5
Gravel, medium to coarse5.5220
Clay, silt, and sand; tan1221
Gravel, fine to medium2.5223.5
Niobrara formation
Smoky Hill chalk member
Chalk, white6.5230
5. Log of test hole 5 at SE corner sec. 8, T. 21 S., R. 42 W., drilled by State and Federal Geological Surveys, 1941. Surface altitude, 3,757.0 feet. (Authority, samples studied by Perry McNally and Thad McLaughlin.) Thickness,
feet
Depth,
feet
Soil, dark brown33
Undifferentiated Pleistocene deposits
Silt and clay; tan; contains lime nodules1316
Silt and sand; limy; gray521
Sand and gravel; gray324
Ogallala formation (?)
Silt and sand; tan; some caliche1337
Gravel, consolidated, brown1956
Niobrara formation
Smoky Hill chalk member
Clay, calcareous, pale yellow to white359
Chalk, pale yellow160
6. Log of test hole 6 in NW corner sec. 3, T. 21 S., R. 43. W., drilled by State and Federal Geological Surveys, 1941. Surface altitude, 3,783.9 feet. (Authority, samples studied by Perry McNally and Thad McLaughlin.) Thickness,
feet
Depth,
feet
Soil, silty, brown33
Undifferentiated Pliocene and Pleistocene deposits
Sand, brown, containing some gravel and caliche29.532.5
Gravel, fine to coarse, brown17.550
Silt and clay; greenish-gray454
Silt and sand; tan660
Sand, coarse, to gravel, coarse; brown18.578.5
Sand, tan to gray2.581
Sand and caliche; gray586
Silt and sand; tan490
Sand and caliche; tan to gray494
Silt, sand, and gravel; tan15.5109.5
Gravel, fine to coarse, brown12.5122
Niobrara formation
Smoky Hill chalk member
Shale, chalky, brown8130
7. Log of test hole 7 at NW corner of sec. 7, T. 22 S., R. 34 W. (Finney County), drilled by the State and Federal Geological Surveys, 1941. Surface altitude, 3,009.1 feet. (Authority, samples studied by Perry McNally and Bruce F. Latta.) Thickness,
feet
Depth,
feet
Soil, sandy, dark11
Undifferentiated Pleistocene deposits
Silt and sand, fine; limy; tan to brown; containing gastropod shells3637
Silt and sand, fine; tan; containing thin lenses of sand and gravel542
Ogallala formation (?)
Silt, clayey, hard, t,an and gray, containing fragments of caliche850
Sand, fine, tan and gray454
Silt and sand, fine; tan; containing gravel and coarser sand660
Sand and gravel; fine to coarse9.569.5
Sand, fine, limy, gray2.572
Sand and gravel; containing some tan limy silt31103
Sand and gravel; containing caliche and fragments and pebbles of limestone7110
Sand and gravel; cemented; hard; gray1.5111.5
Clay-shale, noncalcareous, greenish yellow28.5140
8. Log of test hole 8 at SW corner sec. 10, T. 22 S., R. 36 W., drilled by State and Federal Geological Surveys, 1941. Surface altitude, 3,186.6 feet. (Authority, samples studied by Perry McNally and Thad McLaughlin.) Thickness,
feet
Depth,
feet
Soil, sandy, brown11
Undifferentiated Pleistocene deposits
Silt and sand; fine; brown67
Clay, silt, and sand; tan916
Sand, medium, to gravel, medium; brown420
Silt and sand, fine; tan to gray2.522.5
Sand, medium, to gravel, medium; brown21.544
Sand, medium, to gravel, coarse; brown1963
Silt and sand, fine; tan1780
Sand, medium, to gravel, medium; brown41121
Ogallala formation (?)
Silt and sand, fine; tan to gray9130
Sand, coarse, to gravel, medium; brown2132
Clay, bentonitic, varicolored20.152.5
Niobrara, formation (?)
Shale, calcareous, dark gray7.5160
9. Log of test hole 9 at SE corner sec. 15, T. 22 S., R. 38 W., drilled by State and Federal Geological Surveys, 1941. Surface altitude, 3,339.6 feet. (Authority, samples studied by Perry McNally and Thad McLaughlin.) Thickness,
feet
Depth,
feet
Soil, sandy, dark brown11
Undifferentiated Pleistocene deposits
Silt and sand, fine; tan1617
Sand and gravel; poorly sorted; brown8299
Sand and gravel; containing clay and fragments of caliche14113
Sand, medium, to gravel, coarse; brown to gray12125
Sand and gravel; brown1126
Ogallala formation (?)
Silt and caliche; white to gray8134
Silt and sand, fine; tan6140
Sand, coarse, to gravel, medium; brown20160
Sand, medium, to gravel, medium; brown11.5171.5
Silt and sand, fine; tan to gray17.5189
Sand, medium, to gravel, medium; gray to brown23.5212.5
Clay, silty, blocky, brown2.5215
Carlile shale (?)
Shale, black5220
10. Log of test hole 10 at SE corner sec. 25, T. 22 S., R. 39 W., drilled by State and Federal Geological Surveys, 1941. Surface altitude, 3,407.9 feet. (Authority, samples studied by Perry McNally and Thad McLaughlin.) Thickness,
feet
Depth,
feet
Soil, silty, dark brown3.53.5
Undifferentiated Pleistocene deposits
Silt and sand; tan11.515
Silt, tan, containing nodules of caliche1530
Sand, fine, to gravel, coarse; brown13.543.5
Clay, silty, gray1.545
Sand, fine, to gravel, coarse; brown4186
Silt and sand, fine; tan to gray14100
Gravel, fine to coarse, brown8108
Silt, limy, and sand; brown11119
Sand, fine, to gravel, medium; brown21140
Sand, fine, and silt; tan11151
Sand, fine, to gravel, medium8159
Sand, coarse, to gravel, coarse; brown26185
Ogallala formation (?)
Silt, limy, and sand; gray31216
Clay, silt and sand; tan3219
Gravel, fine to coarse; brown46.5265.5
Niobrara formation (?)
Smoky Hill chalk member
Clay, calcareous, blue-gray and tan4.5270
Clay, calcareous, orange-yellow to blue-gray1028O
11. Log of test hole 11 in NW corner sec. 18, T. 22 S., R. 40 W., drilled by State and Federal Geological Surveys, 1941. Surface altitude, 3,594.1 feet. (Authority, samples studied by Perry McNally and Thad McLaughlin.) Thickness,
feet
Depth,
feet
Soil, sandy, tan to brown35
Undifferentiated Pliocene and Pleistocene deposits
Silt and sand, fine; tan1316
Sand, coarse, to gravel, coarse; brown1127
Caliche, gray to white128
Sand, coarse, to gravel, coarse; brown4371
Silt and sand, fine; tan2.573.5
Sand, fine, to gravel, fine; brown15.589
Silt and caliche;10.599.5
Sand, medium, to gravel, medium; brown26125.5
Caliche, sand, and gravel5.5131
Sand, coarse, to gravel, medium; brown8139
Clay, silt, and sand; gray to white8.5147.5
Niobrara formation
Smoky Hill chalk member
Chalk, white to gray7.5155
Chalk, white3.5158.5
Chalk, white to tan2.5161
Fort Hays limestone member
Limestone, chalky, white to tan29190
Limestone, chalky, white to gray7197
Shale, calcareous, blue-gray9206
Shale, calcareous, brown to gray10216
Shale, calcareous, blue-gray7.5223.5
Carlile shale
Codell sandstone member
Shale, sandy, noncaleareous, blue-gray16.5240
12. Log of test hole 12 at SW corner sec. 15, T. 23 S., R. 36 W., drilled by State and Federal Geological Surveys, 1941. Surface altitude, 3,209.4 feet. (Authority, samples studied by Perry McNally and Thad McLaughlin.) Thickness,
feet
Depth,
feet
Soil, sandy11
Undifferentiated Pliocene and Pleistocene deposits
Clay, sandy, brown1011
Sand, fine to coarse, brown415
Silt and sand, fine; white to tan621
Sand, fine, and gravel; brown1435
Silt and sand, fine; gray to tan439
Gravel, fine to coarse, brown1756
Sand, fine, tan to brown864
Clay, sandy, containing sand and gravel; gray367
Sand, medium, to gravel, medium; brown1986
Silt and sand, fine; tan to gray17103
Silt, sand, and gravel; tan6109
Sand, medium, to gravel, medium; brown10119
Clay, sandy, tan4123
Sand, coarse, to gravel, fine; brown6.5129.5
Silt and sand, fine; light gray to brown36.5166
Clay, silty, yellow to tan8174
Sand and gravel; brown16190
Silt and sand, fine; tan to brown10200
Sand and gravel; brown; contains some clay10210
Caliche, light gray4214
Greenhorn limestone (?)
Limestone, dense, light to medium gray5219
Shale, clayey, tan1.5220.5
Shale, calcareous, black3.5224
Limestone, dense, light to medium gray1225
Shale, calcareous, black2227
Limestone, dense, light to medium gray.5227.5
Shale, calcareous, black.5228
Limestone, gray.5228.5
Shale, black, and limestone, gray1.5230
13. Log of test hole 13 at SE corner sec. 13, T. 23 S., R. 38 W., drilled by State and Federal Geological Surveys, 1941. Surface altitude, 3,318.3 feet. (Authority, samples studied by Perry McNally and Thad McLaughlin.) Thickness,
feet
Depth,
feet
Soil, sandy, dark brown11
Undifferentiated Pleistocene deposits
Clay, sandy, tan910
Silt and sand, fine; tan; contains some caliche1626
Sand,, coarse, to gravel, coarse; brown1743
Silt and sand, fine; tan6.549.5
Sand, medium, to gravel, coarse; brown1665.5
Silt and sand, fine; tan to gray; contains some clay772.5
Sand, medium, to gravel, medium; brown5.578
Silt and sand, fine; light gray to tan482
Sand, medium, to gravel, medium; brown688
Silt and sand, fine; light gray to tan290
Sand, medium, to gravel, medium; brown10100
Sand, fine, to gravel, medium; brown5105
Ogallala formation (?)
Silt and sand, fine; light gray to tan15120
Sand, medium, to gravel, medium; brown10130
Silt and sand, fine; light gray to tan; caliche13143
Sand and gravel; brown4147
Clay, silty, tan18165
Silt and sand, fine; tan; containing some gravel7.5172.5
Sand, medium, to gravel, medium; brown11.5184
Clay, silty, gray to tan, containing sand and gravel29213
Sand, medium, to gravel, fine; gray13.5266.5
Clay, silty, tan to gray5.5232
Sand, fine, to gravel, medium; gray26.5258.5
Clay, silty, tan, containing sand and gravel13.5272
Sand, coarse, to gravel, medium; brown7.5279.5
Silt and sand, fine; light gray4.5284
Sand, coarse, to gravel, medium; brown4288
Clay, silty, tan3291
Carlile shale
Blue Hill shale member
Shale, black to gray11.5302.5
Shale, clayey, tan to black27329.5
Shale, clayey, tan9338.5
Shale, clayey, black9.5348
Limestone, hard, gray.5348.5
Shale, black2350.5
Fairport chalky shale member
Limestone, chalky, white, containing shale and bentonite20370.5
Shale, calcareous, black26396.5
Limestone, chalky, gray, containing some shale6.5403
Shale, calcareous, black6409
Limestone, gray3412
Shale, calcareous, gray to black9421
Shale, calcareous, black7428
Limestone, hard, and shale, calcareous, gray to black45.5473.5
Limestone, hard, gray to white26.5500
Greenhorn limestone (?)
Bridge Creek limestone member
Limestone, hard, gray to white20520
Shale, calcareous, gray, and limestone, hard, gray60580
Hartland shale member (?)
Shale, calcareous, gray30610
Lincoln limestone member (?)
Limestone, hard, buff to gray, and interbedded shale7617
14. Log of test hole 14 at NE corner sec. 13, T. 24 S., R. 35 W., drilled by State and Federal Geological Surveys, 1941. Surface altitude, 2,925.5 feet. (Authority, samples studied by Laurence P. Buck and Thad McLaughlin.) Thickness,
feet
Depth,
feet
Soil, sandy, light brown11
Alluvium
Sand, coarse, rusty34
Gravel, fine to coarse1620
Sand, coarse, and gravel, coarse929
Silt and sand, fine; brown; contains some gravel1140
Undifferentiated Pliocene (?) and Pleistocene deposits
Silt and sand, fine; tan3474
Silt and sand, fine; gray478
Caliche, gray280
Silt and sand, fine; gray1292
Sand, coarse, and gravel, coarse698
Sand, fine, gray to tan19117
Sand, coarse, and gravel, medium7124
Silt and sand, fine; tan to gray17141
Sand, coarse, and gravel, coarse; containing fine sand22.5163.5
Sand, fine, blue-gray to gray16.5180
Silt and sand, fine; blue-gray20200
Silt and sand, fine; blue-gray; containing some gravel20220
Sand, fine, to gravel, coarse; tan25245
Sand, fine, light tan5250
Sand, coarse, to gravel, medium17267
Sand, fine, to gravel, medium; tan to gray8275
Sand, coarse, to gravel, medium; tan5280
Sand, coarse, to gravel, medium; tan; contains some sand, fine10290
Sand, fine to coarse; tan; contains some gravel10300
Sand, coarse, to gravel, medium10310
Sand, medium, to gravel, coarse4314
Sand, fine, containing some clay and fine gravel16330
Sand, coarse, to gravel, coarse16346
Sand, fine, and silt; tan4350
Sand, coarse, to gravel, coarse; containing rounded fragments of caliche10.5360.5
Graneros shale
Shale, noncaleareous, black to light gray8.5369
15. Log of test hole 15 at NW corner sec. 21, T. 24 S., R. 37 W., drilled by State and Federal Geological Surveys, 1941. Surface altitude, 3,275.0 feet. (Authority, samples studied by Laurence P. Buck and Thad McLaughlin.) Thickness,
feet
Depth,
feet
Soil, sandy, light brown22
Undifferentiated Pleistocene deposits
Silt and sand, fine to coarse; light brown1315
Caliche, tan621
Sand, fine, tan to brown7.528.5
Sand, coarse, to gravel, coarse; brown31.560
Sand, fine, brown464
Sand, coarse, to gravel, coarse; brown32.596.5
Sand, fine, and silt; tan5101.5
Gravel, fine to coarse1.5103
Silt and sand, fine; tan to gray7110
Ogallala formation
Gravel, fine, and sand6116
Sand, fine, and silt; tan20136
Silt and sand, fine; light brown14150
Sand, medium, to gravel, medium7157
Silt and sand, fine; gray to brown15172
Caliche, light gray.5172.5
Silt and sand, fine; tan10.5183
Sand, fine, tan9.5192.5
Sand, coarse, to gravel, coarse12204.5
Silt and sand, fine; tan7.5212
Sand, fine, tan, containing some gravel26.5238.5
Clay, blocky, tan11.5250
Greenhorn limestone
Shale, calcareous, dark gray27277
Shale, black, and limestone, gray6.5283.5
Shale, clayey, calcareous, gray7290.5
Graneros shale
Shale, light gray.1291.5
Shale, silty, gray.5292
Shale, tan to dark gray24316
Shale, fissile, gray, and bentonite, tan2318
Shale, clayey, dark gray12330
16. Log of test hole 16 in SW corner sec. 30, T. 24 S., R. 40 W., drilled by State and Federal Geological Surveys, 1941. Surface altitude, 3,286.4 feet. (Authority, samples studied by Perry McNally and Thad McLaughlin.) Thickness,
feet
Depth,
feet
Undifferentiated Pleistocene deposits
Sand, fine to medium, brown33
Silt, sand, and gravel; brown710
Sand, coarse, and gravel, coarse; brown4656
Silt and sand, fine; tan460
Sand and gravel; brown666
Graneros shale
Shale, black2995
Limestone, hard, gray, and shale, black5100
Shale, noncalcareous, black22.5122.5
Dakota formation
Sandstone, gray, and shale, sandy2.5125
Shale, blue-gray, and sandstone, hard5130
Shale, sandy, and sandstone, gray to tan20150
17. Log of test hole 17 in SW corner sec. 2, T. 24 S., R. 43 W., drilled by State and Federal Geological Surveys, 1941. Surface altitude, 3,367.3 feet. (Authority, samples studied by Perry McNally and Thad McLaughlin.) Thickness,
feet
Depth,
feet
Dune sand
Sand, fine to medium, brown66
Alluvium
Silt, sandy, brown1016
Gravel, coarse, brown2440
Gravel, coarse, containing a thin bed of clay1050
Gravel, coarse, brown74124
18. Log of test hole 18 NE corner sec. 34, T. 24 S., R. 43 W., drilled by State and Federal Geological Surveys, 1941. Surface altitude, 3,503.8 feet. (Authority, samples studied by Perry McNally and Thad McLaughlin.) Thickness,
feet
Depth,
feet
Soil, silty, brown (probably loess)1616
Undifferentiated Pleistocene (?) deposits
Clay, silty, gray to tan2.518.5
Greenhorn limestone
Lincoln limestone member
Clay, calcareous, tan1028.5
Chalk, white, and shale, calcareous, tan3.532
Limestone, chalky, and shale, calcareous4.536.5
Limestone, chalky, hard440.5
Graneros shale
Shale, fissile, black7.548
Shale, blue, containing some bentonite1.549.5
Shale, fissile, black20.570
19. Log of test hole 19 at the SE corner sec. 26, T. 25 S., R. 35 W., drilled by State and Federal Geological Surveys, 1941. Surface altitude, 2,992.5 feet. (Authority, samples studied by Laurence P. Buck and Thad McLaughlin.) Thickness,
feet
Depth,
feet
Dune sand
Sand, fine to medium3434
Undifferentiated Pleistocene deposits
Sand, coarse, and gravel, coarse6296
Silt and sand, fine7103
Sand, fine, and gravel, fine to coarse7110
Sand, coarse, and gravel, coarse10120
Sand, fine, and gravel, fine30150
Sand, fine, and gravel, coarse7157
Silt and clay6163
Silt, containing some gravel26199
Gravel, coarse, to sand, coarse12201
Sand and gravel; consolidated9210
Gravel, fine to coarse, consolidated7217
Gravel, fine to coarse, and sand31248
Sand, silt, and gravel; consolidated52300
Sand, fine, and caliclie26326
Sand, fine, to gravel34360
Silt and sand, fine; containing gravel31391
Sand, fine, to gravel, medium9400
Clay, silty10410
Clay, containing silt, sand, and gravel12422
Clay, silty, containing sand and gravel14436
Dakota formation
Clay and clay shale; silty10446
Sandstone4450
20. Log of test hole 20 at SE corner sec. 34, T. 26 S., R. 36 W., drilled by State and Federal Geological Surveys, 1941. Surface altitude 3,090.5 feet. (Authority, samples studied by Perry McNally and Thad McLaughlin.) Thickness,
feet
Depth,
feet
Dune sand
Sand, fine, tan to gray3030
Undifferentiated Pleistocene deposits
Sand, fine to coarse, brown1848
Silt and sand, fine; tan to brown3583
Sand, fine, brown, containing clay and pebbles of caliche790
Sand, coarse, to gravel, coarse; brown45135
Gravel, fine to coarse, brown5140
Sand, coarse, to gravel, coarse; tan to brown35175
Sand, medium, to gravel, fine; brown4179
Sand, coarse, to gravel, coarse; brown21200
Sand, medium, to gravel, medium; brown16216
Clay, silty, gray to buff7223
Sand, medium, to gravel, fine; brown101324
Clay, silty, varicolored10.5334.5
Sand, coarse, to gravel, coarse; brown10.5345
Ogallala formation (?)
Silt and sand, fine; tan, to gray; and caliche35380
Silt and sand, fine; tan to gray; and clay, black10390
Sand, fine, to gravel, fine; brown10400
Clay, silty, tan to gray6406
Dakota formation
Sandstone, dark brown, and clay, varicolored1407
Sandstone, white to gray3410
21. Log of test hole 21 at SE corner sec. 33, T. 26 S., R. 37 W., drilled by State and Federal Geological Surveys, 1941. Surface altitude, 3,073.9 feet. (Authority, samples studied by Perry McNally and Thad McLaughlin.) Thickness,
feet
Depth,
feet
Soil, sandy, brown44
Undifferentiated Pliocene and Pleistocene deposits
Clay, silty, greenish-gray610
Clay, silty to fine sandy; gray515
Clay, silty and fine sandy; tan to gray2136
Sand, fine, and silt; tan440
Clay, sandy, and silt; tan3070
Silt and sand; fine; tan1080
Silt, sand, and gravel383
Silt and sand, fine; brown19102
Silt and sand, fine; tan; contains some gravel48150
Clay, silty, tan, containing fine sand and gravel22.5172.5
Clay, silty and fine sandy; dark gray47.5220
Clay, silty, dark gray, containing lenses of sand and gravel9229
Silt, sand, and gravel; brown11240
Sand, medium, and gravel, fine12252
Silt, and sand, fine; light gray12264
Clay, silty and fine sandy; tan56320
Dakota formation
Sandstone, white, containing concretions of iron20340
22. Log of test hole 22 at SE corner sec. 31, T. 26 S., R. 38 W., drilled by State and Federal Geological Surveys, 1941. Surface altitude, 3,203.2 feet. (Authority, samples studied by Perry McNally and Thad McLaughlin.) Thickness,
feet
Depth,
feet
Soil, sandy, brown11
Undifferentiated Pleistocene deposits
Silt and sand, fine; tan to gray1718
Sand and gravel; containing some silt1533
Silt and sand, fine; tan11.544.5
Sand, medium, to gravel, coarse; brown3074.5
Caliche, white1.576
Sand, medium, to gravel, coarse; brown682
Ogallala formation (?)
Silt and sand, fine; tan to oray39121
Caliche, soft, light gray to white14135
Caliche, tan, containing fragments of sandstone, brown7142
Dakota formation
Sandstone, brown, and clay, yellow3145
Shale and sandstone; varicolored8.5153.5
Shale, sandy, blue-gray, and sandstone, fine1.5155
Shale and sandstone, fine; varicolored2.5157.5
Sandstone, rusty-brown2.5160
23. Log of test hole 23 at NE corner sec. 1, T. 26 S., R. 39 W., drilled by State and Federal Geological Surveys, 1941. Surface altitude, 3,281.1 feet. (Authority, samples studied by Perry McNally and Thad McLaughlin.) Thickness,
feet
Depth,
feet
Soil, silty, brown2.52.5
Undifferentiated Pliocene and Pleistocene deposits
Silt, and sand, fine; tan7.510
Sand, fine, brown1020
Silt, limy, and sand, tan828
Gravel, fine to coarse; brown2250
Silt and sand; tan1464
Clay, sandy, tan, containing caliche670
Silt and clay; tan1080
Sand and silt; limy; tan989
Dakota formation
Sandstone, gray190
Sandstone, fine-grained, gray595
Sandstone, fine-grained, varicolored5100
24. Log of test hole 24 in SE corner sec. 36, T. 26 S., R. 40 W., drilled by State and Federal Geological Surveys, 1941. Surface altitude, 3,303.2 feet. (Authority, samples studied by Perry McNally and Thad McLaughlin.) Thickness,
feet
Depth,
feet
Soil, sandy, brown11
Undifferentiated Pliocene and Pleistocene deposits
Silt and sand, fine; tan1112
Silt, tan to gray820
Silt and sand, fine; tan1232
Sand and gravel; coarse; brown17.549.5
Clay, silty, tan7.557
Silt and sand; tan2178
Sand, coarse, to gravel, coarse6.584.5
Silt and clay; tan11.596
Silt and sand, fine to coarse; tan6102
Clay, silt, and sand; calcareous4.5106.5
Dakota formation
Sandstone, tan, and clay, varicolored7.5114
Clay, silty, varicolored10124
Sandstone, tan to brown, and shale, gray2126
Clay, silty, gray to purple7133
Sandstone, gray to brown7140
Clay, gray to yellow15155
Sandstone, varicolored4.5159.5
Clay, gray17.5177
Sandstone, tan to brown6183
Clay, silty, gray5188
Sandstone, tan to brown3191
Clay, silty, gray15206
Sandstone, tan to dark brown, containing concretions of ironstone12.5218.5
Sandstone, pale yellow to tan17.5236
Kiowa shale
Shale, sandy, blue-gray16252
Shale, gray, containing sandstone8260
Shale, black67.5327.5
Shale, sandy, dark gray39.5367
Cheyenne sandstone
Clay, silty, white3370
Sandstone, fine, white to buff33403
Morrison (?) formation
Clay, silty, blue-green4407
Sandstone, buff, and clay, varicolored5412
Clay, silty, gray8420
Sandstone, buff to red, and clay, blue-green to black63.5483.5
Sandstone, white to buff, and shale, varicolored20503.5
Permian (?) redbeds
Siltstone, dark red6.5510
25. Log of test hole 25 at the SW corner sec. 36, T. 26 S., R. 41 W., drilled by State and Federal Geological Surveys, 1940. Surface altitude, 3,265 feet. (Authority, samples studied by Perry McNally, Frank Conselman, and Bruce F. Latta.) Thickness,
feet
Depth,
feet
Undifferentiated Pliocene and Pleistocene deposits
Silt, fine sandy, tan to gray2525
Silt, fine sandy and clayey, gray1136
Sand and gravel; gray to brown844
Silt, sandy, light brown2670
Sand, medium, to gravel, coarse; tan1080
Silt, sand, and gravel, tan1090
Sand, fine, to gravel, medium; tan11101
Silt, light gray to brown, and clay9110
Silt and clay; blue-gray10120
Silt, fine sandy, brown4124
Sand, fine to coarse, tan16140
Sand, fine, to gravel, coarse; tan10150
Sand, coarse, to gravel, coarse; tan19169
Silt, sandy, brown16185
Sand, coarse, to gravel, coarse; tan18203
Silt and clay; sandy; brown14217
Sand, medium, to gravel, medium; tan9226
Dakota formation
Sandstone, yellow-brown and red-brown4230
Clay, soft, light gray and blue2.5232.5
Sandstone, light brown, yellow, and red-brown5237.5
Sandstone, red-brown, and clay, yellow and gray6.5244
Clay, yellow, gray, and blue6250
Sandstone, soft, yellow to light brown20270
Clay, sandy, gray-green to yellow19289
Kiowa shale
Shale, clayey, blue-gray16305
Shale, sandy, hard, blue-gray10315
Shale, clayey, soft, blue-gray15330
Shale, hard, blue-gray26356
Cheyenne sandstone
Sandstone, fine to medium, gray14370
Shale, clayey, blue-gray, and sandstone, fine, hard24394
Sandstone, soft, light gray10404
Sandstone, hard, buff8412
Triassic (?) redbeds
Clay, red and light gray5417
Sandstone, buff2419
Clay, red, and sandstone, soft, yellow-brown5424
Clay, red and light gray3427
Sandstone, hard, light brown to buff14441
Clay, red, brown, and light gray22463
Sandstone, light gray to buff30493
Siltstone, hard, red5498
Clay, gritty, light gray to white6.5504.5
Sandstone, light brown to buff5.5510
Clay, silty, red-brown, light gray, and gray-green13523
Sandstone, buff to gray-brown65588
Sandstone, hard, fine, buff, blue-green, and gray25613
Clay, silty, light gray and blue-gray4617
26. Log of test hole 26 in SE corner sec. 36, T. 26 S., R. 42 W., drilled by State and Federal Geological Surveys, 1941. Surface altittide, 3,366.2 feet. (Authority, samples studied by Perry McNally arid Thad McLaughlin.) Thickness,
feet
Depth,
feet
Undifferentiated Pliocene (?) and Pleistocene deposits
Sand, fine to medium, brown1313
Silt, tan, and sand, fine to coarse922
Clay, silty, tan931
Silt, brown, and sand, fine to coarse11.542.5
Silt, calcareous, tan, and clay1355.5
Gravel, fine to coarse, brown7.563
Sand and gravel; brown770
Silt and sand; -,ray676
Clay, silt, and sand; tan1490
Sand and silt; brown10100
Sand and gravel; brown8108
Silt and sand; tan27135
Sand, fine, to gravel, medium10.5145.5
Silt and sand, fine; tan20.5166
Gravel, fine to coarse, brown4.5170.5
Silt and sand; tan to gray19.5190
Sand and gravel; brown20210
Silt and sand, fine to coarse; tan to gray15.5225.5
Sand, coarse, to gravel coarse; brown10.5236
Clay, silty, gray6242
Sand, fine to medium, brown, containing rounded pebbles of caliche7249
Gravel, varicolored (reworked pebbles of sandstone from the Dakota formation)5254
Dakota formation
Sandstone, yellow-brown6260
27. Log of test hole 27 in NW corner sec. 23, T. 26 S., R. 43 W., drilled by State and Federal Geological Surveys, 1941. Surface altitude, 3 .516.7 feet. (Authority, samples studied by Perry McNally and Thad McLaughlin.) Thickness,
feet
Depth,
feet
Soil, sandy, tan55
Undifferentiated Pliocene and Pleistocene deposits
Silt, tan38
Sand, fine to medium, tan311
Sand, fine to coarse, tan, containing pebbles of caliche1526
Sand, coarse, to gravel, coarse; brown935
Clay, silty, tan439
Gravel, fine to coarse, brown1857
Silt and sand, medium to coarse; tan7.564.5
Sand, coarse, to gravel, coarse; brown1.566
Sand, fine to medium, tan1480
Clay, silt, and sand; gray to tan40.5120.5
Silt and sand, medium; tan5.5126
Clay, silt, and sand; tan15141
Sand and gravel; brown13154
Silt and clay; tan9163
Silt and sand; brown17180
Silt, sand, and gravel5185
Sand, coarse, to gravel, coarse; brown15200
Clay, silty, blocky, tan to gray32232
Dakota formation
Clay, varicolored8240

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Kansas Geological Survey, Geology
Placed on web Nov. 6, 2007; originally published December 1943.
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