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Finney and Gray county Geohydrology

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Logs of Test Holes and Wells

On the following pages are listed the logs of 59 wells and test holes in Finney and Gray counties, one test hole (1) in Scott County, one test hole (12) in Kearny County, and two test holes (28 and 29) in Ford County. Logs 1 to 29 are of test holes drilled by the State and Federal Geological Surveys (fig. 7). Logs 30 to 60 include logs of test holes drilled by other agencies and well drillers, logs of water wells (pls. 3 and 4), and partial logs of oil tests.

Lithologic terms used in the driller's logs have been retained. The term "gyp" has been used by many drillers to describe the harder lime-cemented beds in the Ogallala formation and undifferentiated Pleistocene beds. "Quicksand" and "pack sand" have been used by some drillers to describe loose fine sand, and "sand rock" has been used to describe sandstone. Many of the softer unconsolidated beds of the Ogallala formation and Pleistocene deposits have been logged as clay, but in those wells from which cuttings are available for study most of the so-called clay was found to be silt.

Because of lack of detail in the driller's logs of oil tests, no attempt was made to correlate these logs (58-60).

Wells 1-12 || Wells 13-24 || Wells 25-36 || Wells 37-48 || Wells 49-60

13. Log of test hole 13 in the SE SW sec. 13, T. 25 S., R. 31 W., Finney County, drilled by State and Federal Geological Surveys, 1941. Surface altitude 2,744.2 feet. (Authority, samples studied by Perry M. McNally and Bruce F. Latta.) Thickness
(feet)
Depth
(feet)
Alluvium
Sand, tan to brown11
Sand, medium to coarse, brown12
Gravel, medium to very coarse; containing some sand and large cobbles32.534.5
Undifferentiated Pleistocene deposits and Ogallala formation
Silt and sand, fine; limy; light tan; containing few thin cemented beds11.546
Sand, fine to coarse, tan1359
Clay, limy, silty, light gray to white; and cemented silt and fine sand1473
Silt, clayey, sandy, yellow-tan2093
Sand, coarse, to gravel, medium; containing abundant yellow chalk pebbles26119
Silt, clayey, sandy, tan13132
Carlile shale
Fairport chalky shale member
Shale, silty, yellow; and shale, chalky, white8.5140.5
Shale, calcareous, black4.5145

14. Log of test hole 14 at the NW corner NE sec. 12, T. 25 S., R. 33 W., Finney County, drilled by State and Federal Geological Surveys, 1941. Surface altitude, 2,866.8 feet. (Authority, samples studied by Perry M. McNally and Bruce F. Latta.) Thickness
(feet)
Depth
(feet)
Dune sand
Soil, sandy, dark0.50.5
Sand, fine to medium, tan3.54
Sand, fine, tan48
Terrace gravels
Gravel, medium to very coarse, sandy; containing pebbles and cobbles3745
Undifferentiated Pleistocene deposits and Ogallala formation
Silt and sand, fine; limy; gray and tan; containing some gray silty clay3681
Sand, fine, to gravel, medium; tan1293
Silt and sand, fine; limy; tan and light gray32125
Sand, coarse, to gravel, medium; brown30155
Silt and sand, fine; limy; light gray7162
Sand, fine, red-brown9171
Sand, fine, lime-cemented, hard; interbedded with light gray silt and fine sand9180
Sand, coarse, to gravel, coarse; brown15.5195.5
Silt and sand, fine; limy; light gray; containing hard cemented zone at top2.5198
Sand, coarse, to gravel, medium; brown5.5203.5
Silt, clayey, medium gray2.5206
Sand, coarse, to gravel, medium; brown31237
Sand, fine, brown; containing few thin cemented zones and some coarser sand and gravel23260
Sand, coarse, and gravel, fine17277
Silt and sand, fine; tan and light gray12289
Sand, medium, to gravel, fine; brown20309
Silt, clayey, tan5314
Sand and gravel; brown11325
Silt, clayey, sandy, yellow-tan11336
Gravel, fine to coarse, sandy; containing granules and pebbles of Cretaceous rocks10346
Silt and sand, fine; limy; tan and light gray4350
Sand, medium, to gravel, coarse; containing chalk and limestone pebbles55.5405.5
Greenhorn limestone
Shale, silty, calcareous, yellow-tan4409.5
Shale, calcareous, black, and limestone, dark gray10.5420

15. Log of test hole 15 at the NW corner sec. 12, T. 26 S., R. 33 W., Finney County, drilled by State and Federal Geological Surveys, 1941. Surface altitude, 2,884.1 feet. (Authority, samples studied by Perry M. McNally and Bruce F. Latta.) Thickness
(feet)
Depth
(feet)
Dune sand
Sand, fine to medium, tan22
Sand, fine to medium, silty, brown57
Undifferentiated Pleistocene deposits and Ogallala formation
Clay, hard, black2.59.5
Silt, clayey and sandy, green-gray to tan; containing gastropod shells and shell fragments6.516
Sand, fine, tan; containing shell fragments521
Silt, clayey and sandy, green-gray; containing shell fragments3.524.5
Sand, coarse, to gravel, very coarse16.541
Silt and sand, fine; limy; light gray and tan1657
Sand, fine, tan1269
Sand, coarse, to gravel, coarse2695
Silt and sand, fine; limy; tan9.5104.5
Sand, fine, tan; containing some coarser sand and gravel5.5110
Sand, coarse, to gravel, coarse; brown20130
Sand, medium, to gravel, fine; brown26156
Silt and sand, fine; light tan and light gray3159
Sand, medium, to gravel, coarse20179
Silt and sand, fine; tan; containing few thin cemented beds28207
Gravel, fine to medium; containing some sand8215
Sand and gravel; lime-cemented; hard10225
Sand, coarse, to gravel, coarse; brown66291
Silt and sand, fine; limy; light gray and tan12303
Sand, coarse, to gravel, coarse; containing some silt and fine sand17320
Silt and sand, fine; limy; light gray and tan; containing few thin beds of hard, white caliche28348
Silt and sand, fine; tan4352
Silt and sand, fine; brown; containing cemented fragments and caliche19371
Silt, clayey, tan; containing thin lenses of silt and fine sand19390
Sand, medium, to gravel, fine; brown2.5392.5
Laverne (?) formation
Clay, blocky, tan to brown47.5440
Dakota formation
Sandstone, pink-red to maroon-red; containing some iron concretions15455
Shale, gray12467

16. Log of test hole 16 at the SW corner sec. 36, T. 26 S., R. 33 W., Finney County, drilled by State and Federal Geological Surveys, 1941. Surface altitude, 2,914.5 feet. (Authority, samples studied by Perry M. McNally and Bruce F. Latta.) Thickness
(feet)
Depth
(feet)
Soil, sandy, dark33
Undifferentiated Pleistocene deposits
Silt and sand, fine to coarse; tan; containing shell fragments2730
Gravel, fine to coarse; containing thin lenses of tan silt and sand85115
Silt and sand, fine; tan; brown and gray25140
Sand, medium, to gravel, medium; brown8148
Sand, fine, brown6.5154.5
Sand, medium, to gravel, medium; brown35189.5
Silt, clayey and sandy, tan7.5197
Silt and sand, fine; medium gray; containing shell fragments4201
Silt and sand, fine; tan3204
Gravel, fine to coarse; containing some silt and sand40244
Clay, silty and sandy, gray, blue-gray and tan20264
Sand, lime-cemented, hard, blue gray8272
Clay, silty, blue-gray; containing shell fragments8280
Clay, silty and sandy, soft, blue-black; containing gastropod fragments and ostracodes10290
Sand, coarse, to gravel, coarse; brown23.5313.5
Ogallala (?) formation
Silt and sand, fine; limy; tan and light gray7.5321
Sand, medium to gravel, medium; brown; contains some light gray sandy silt10331
Silt, clayey and sandy, tan and light gray; containing thin caliche beds31362
Sand, fine, tan to brown; containing some coarser sand and gravel9371
Sand and gravel; lime-cemented; light gray; and caliche, white19390
Laverne (?) formation
Clay, silty, tan and gray20410
Clay-shale, silty, tan and brown41451
Sand, medium, to gravel, fine; brown18469
Clay, silty, yellow-tan12.5481.5
Dakota formation
Shale, soft, yellow-tan and light gray; containing thin maroon-red sandstone beds8.5490
Sandstone, red, yellow-tan, and red-brown7497
Shale, silty, yellow-tan3500

17. Log of test hole 17 at the SE corner sec. 11, T. 24 S., R. 27 W., Gray County, drilled by State and Federal Geological Surveys, 1941. Surface altitude, 2,664.3 feet. (Authority, samples studied by Laurence P. Buck and Bruce F. Latta.) Thickness
(feet)
Depth
(feet)
Soil, dark brown22
Undifferentiated Pleistocene deposits and Ogallala formation
Silt, sandy, tan; containing lime nodules5.57.5
Silt, reddish brown; containing scattered sand, gravel, and lime nodules714.5
Silt and sand, fine; limy; light tan; containing some gravel and caliche fragments19.534
Silt, sandy, limy, light tan to white; containing caliche nodules1044
Sand, fine, orange-tan; contains caliche and a little gravel1054
Sand, coarse, to gravel, coarse; partly cemented1266
Sand, gravel, and caliche2.568.5
Silt and sand, fine; limy; light tan1.570
Silt and sand, fine; tan373
Silt, lime-cemented, light tan to white1790
Gravel, coarse; composed chiefly of limestone and chalk pebbles15105
Silt and sand, fine; lime-cemented; white5110
Greenhorn(?) limestone
Shale, calcareous, silty, dark gray; containing crystalline calcite veins10120

18. Log of test hole 18 at the SE corner sec. 15, T. 24 S., R. 28 W., Gray County, drilled by State and Federal Geological Surveys, 1941. Surface altitude, 2,742.4 feet. (Authority, samples studied by Perry M. McNally, Laurence P. Buck, and Bruce F. Latta.) Thickness
(feet)
Depth
(feet)
Soil, sandy, tan0.50.5
Undifferentiated Pleistocene deposits and Ogallala formation
Silt, tan; containing scattered sand and gravel16.517
Silt and sand, fine; tan; containing lime nodules1431
Silt, sandy, limy, tan2455
Caliche, silty, light gray to white560
Silt, sandy, limy, tan to white4.564.5
Caliche, hard, light tan to light gray1.566
Sand, fine to medium, cemented, tan672
Sand and gravel; brown274
Silt, sand, and gravel; cemented; gray579
Sand and gravel; brown483
Gravel, medium to coarse, cemented790
Silt and sand, fine; limy; tan to reddish brown21111
Caliche, soft, light gray; and silt and sand, fine; limy3114
Gravel, medium to coarse, brown16130
Silt, sand, and gravel11141
Caliche, light gray and tan; and silt and fine sand; limy4145
Silt and sand, fine; limy; light gray to white6151
Silt and clay, silty; yellow-tan7158
Sand and gravel; brown5163
Silt, sandy, tan27190
Sand, fine, to gravel, fine; limy; silty; tan20210
Silt and sand, fine; limy; tan5.5215.5
Carlile shale
Fairport chalky shale member
Shale, calcareous, black4.5220
Shale, calcareous, dark gray to black; contains thin calcite veins6226
Greenhorn (?) limestone
Shale, calcareous, light-gray and black; contains 5-inch bed of blue-gray bentonite at 261 feet46272
Shale, silty, sandy, calcareous, black18290
Shale, calcareous, silty, dark gray to black; containing few thin beds of blue-gray bentonite and calcite57347
Shale, calcareous, silty, light gray to white; containing interbedded hard black shale3350
Graneros shale--Kiowa (?) shale
Shale, noncalcareous, blue-gray; contains few thin beds of dark gray sandstone23373
Shale, noncalcareous, silty, light gray to black; containing pyrite6.5379.5
Sandstone, hard, dark gray0.5380
Shale, noncalcareous, silty, light to medium gray20400
Shale, noncalcareous, silty, light gray; and shale, sandy, gray20420
Shale, noncalcareous, dark gray; and shale, silty and sandy, light gray50470
Shale, noncalcareous, sandy, light gray25495
Shale, noncalcareous, sandy, dark brown to black5500
Shale, sandy, banded, light to dark gray and yellow10510
Shale, noncalcareous, dark gray; containing some medium gray and orange-tan silty clay26536
Shale, noncalcareous, dark gray; containing some light-gray silty shale and brown sandy shale24560
Shale, noncalcareous, light to medium gray; containing sand, mineral charcoal, and a little red clay57617

19. Log of test hole 19 at the SE corner sec. 13, T. 24 S., R. 30 W., Gray County, drilled by State and Federal GeologicalSurveys, 1941. Surface altitude, 2,819.2 feet. (Authority, samples studied by Laurence P. Buck and Bruce F. Latta.) Thickness
(feet)
Depth
(feet)
Soil, dark brown11
Undifferentiated Pleistocene deposits and Ogallala formation
Silt and sand, fine; limy; tan and light brown1920
Silt and sand, fine; limy; reddish tan to yellow-tan; contains caliche2343
Silt and sand, fine; limy, cemented548
Sand, coarse, to gravel, coarse1260
Sand, coarse, to gravel, fine; cemented5.565.5
Sand, coarse, to gravel, coarse4.570
Sand, fine, tan373
Sand, coarse, to gravel, coarse; containing thin cemented zones2396
Gravel, fine, cemented2.598.5
Silt and sand, fine; limy; tan1.5100
Sand, fine, to gravel, coarse; partly cemented31131
Silt and sand, fine; tan19150
Silt, sand, gravel, and caliche11161
Sand, coarse, to gravel, medium11172
Silt and sand, fine; tan11183
Sand, coarse, to gravel, coarse27210
Gravel, fine to coarse; composed mostly of white to light-gray limestone pebbles14224
Clay, noncalcareous, yellow and gray18242
Carlile shale
Fairport chalky shale member
Shale, calcareous, dark gray8250

20. Log of test hole 20 at the SE corner sec. 27, T. 25 S., R. 28 W., Gray County, drilled by State and Federal Geological Surveys, 1941. Surface altitude, 2,751.1 feet. (Authority, samples studied by Laurence P. Buck and Bruce F. Latta.) Thickness
(feet)
Depth
(feet)
Soil, sandy, dark brown22
Undifferentiated Pleistocene deposits and Ogallala formation
Silt, tan to red-brown; contains scattered sand and gravel810
Silt and sand, fine; limy; light tan to red-brown; containing caliche nodules 45.555.5
Silt and sand, fine; lime-cemented; soft; white to light tan; and caliche9.565
Sand, fine, red-tan, gray, and yellow; and caliche1580
Sand, fine, to gravel, coarse; loose; contains cemented zones17.597.5
Sand, fine, limy, light tan2.5100
Silt and sand, fine; light tan; containing scattered coarse sand and gravel10110
Sand, fine to medium, tan; containing scattered gravel and caliche10120
Sand, fine, to gravel, fine; silty30150
Silt, sand, and gravel; limy, tan24174
Sand, fine, pink-tan6180
Sand, fine, limy, light tan; containing some coarse sand, fine gravel, and caliche7187
Silt and sand, fine; limy, white to light tan; and caliche8195
Sand, gravel, and caliche25220
Silt and sand, fine; tan10230
Sand, fine, to gravel, fine; silty40270
Sand, fine, to gravel, medium15285
Silt, sandy, light tan5290
Silt and sand, fine; clayey; tan to light brown13303
Greenhorn limestone
Shale, calcareous, light to dark gray and dark brown; containing thin crystalline calcite veins7310

21. Log of test hole 21 at the NE corner 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. (Authority, samples studied by Laurence P. Buck and Bruce F. Latta.) Thickness
(feet)
Depth
(feet)
Soil, brown11
Alluvium
Sand, fine, silty, tan12
Sand, coarse, to very coarse gravel4143
Undifferentiated Pleistocene deposits and Ogallala formation
Silt and sand, fine; yellow-tan; containing caliche and lime-cemented nodules1962
Sand, fine, hard, cemented2.564.5
Silt and sand, fine; clayey; yellow-tan; containing caliche and "mortar bed" fragments in upper part18.583
Sand, fine to gravel, fine; containing some yellow-tan silty and sandy clay27110
Silt, fine sandy, yellow-tan; and clay, blocky, silty; containing scattered sand and gravel20130
Sand, fine to gravel, coarse; containing thin lenses of sandy silt30160
Sand, fine, silty, tan and gray, and sand and gravel containing limestone and yellow shale pebbles9169
Carlile shale
Fairport chalky shale member
Shale, silty and fine sandy, calcareous, dark gray26195
Shale, silty and fine sandy, light gray and medium gray; and shale, sandy, hard, dark gray1.5196.5
Shale, silty and fine sandy, calcareous, dark gray3.5200
Shale, silty and sandy, calcareous, light to dark gray; contains thin bed of blue-gray bentonite and calcite10210
Shale, sandy, hard, calcareous, dark gray10220

22. Log of test hole 22 at the SW corner sec. 10, T. 26 S., R. 28 W., Gray County, drilled by State and Federal Geological Surveys, 1941. Surface altitude, 2,621.8 feet. (Authority, samples studied by Perry M. McNally and Bruce F. Latta.) Thickness
(feet)
Depth
(feet)
Soil, sandy, dark0.50.5
Alluvium
Sand, fine to medium, limy, gray4.55
Gravel, medium to very coarse; contains pebbles up to an inch in diameter3540
Sand, fine, to gravel, coarse; brown19.559.5
Ogallala formation
Silt and sand, fine; lime-cemented; gray3.563
Sand and gravel; limy; gray467
Sand, fine to coarse, silty, tan and light gray33100
Silt and sand, fine; limy; tan10110
Sand, fine, to gravel, fine; silty20130
Sand, coarse, to gravel, coarse; containing limestone and sandstone granules and pebbles26156
Greenhorn limestone
Clay, silty, calcareous, yellow-tan7.5163.5
Shale, dark gray to black; containing few hard calcite veins4.5168
Shale, hard, light gray to white; and shale, calcareous, black32200
Shale, calcareous, light to dark gray and black; containing thin bed of light-blue bentonite10210

23. Log of test hole 23 at the NW corner sec. 34, T. 26 S., R. 28 W., Gray County, drilled by the State and Federal Geological Surveys, 1941. Surface altitude, 2,671.5 feet. (Authority, samples studied by Perry M. McNally and Bruce F. Latta.) Thickness
(feet)
Depth
(feet)
Dune sand
Soil, sandy, dark33
Sand, fine, silty, brown710
Terrace gravels
Sand, medium to gravel, fine; brown; containing snails and shell fragments1020
Silt to sand, coarse; tan424
Sand, medium, to gravel, medium; brown630
Sand, coarse, to gravel, very coarse; poorly sorted4878
Ogallala formation
Silt and sand, fine; limy; light gray381
Sand, coarse, to gravel, very coarse22103
Gravel, fine to very coarse, brown37140
Silt and sand, fine; tan to buff; contains a little sand and gravel43183
Gravel, fine to coarse, brown17200
Silt and sand, fine to coarse; tan10210
Silt and sand; limy; light gray5215
Greenhorn limestone
Shale, calcareous, black5220

24. Log of test hole 24 at the NE corner sec. 31, T. 27 S., R. 30 W., Gray County, drilled by the State and Federal Geological Surveys, 1941. Surface altitude, 2,837.4 feet. (Authority, samples studied by Perry M. McNally and Bruce F. Latta.) Thickness
(feet)
Depth
(feet)
Soil, sandy, dark22
Undifferentiated Pleistocene deposits and Ogallala formation
Silt and sand, fine; tan57
Sand, fine, to gravel, medium; brown512
Silt and sand; tan; containing caliche pebbles and nodules and some gravel in lower part4860
Sand, fine, to gravel, medium; silty, brown1878
Silt to sand, medium; limy; light gray and light tan32110
Sand, coarse, to gravel, coarse; brown49159
Silt and sand, fine; tan1160
Sand, coarse, to gravel, coarse; brown; lower 10 feet is partly cemented66226
Silt, sand, gravel, and caliche; poorly sorted; containing "mortar bed' pebbles14240
Silt to sand, coarse; limy; tan and gray3.5243.5
Sand, coarse, to gravel, medium; brown16.5260
Silt, tan; containing scattered sand and gravel11271
Sand, medium, to gravel, coarse; brown26297
Silt and sand, fine to coarse; gray and tan; containing some gravel53350
Sand, fine to coarse, tan19369
Silt and sand, fine; tan8377
Sand and gravel, fine to medium; containing an abundance of brown sandstone pebbles27404
Dakota formation
Sandstone, concretionary, brown3407
Clay, gritty, yellow, light gray, and brown3410

Wells 1-12 || Wells 13-24 || Wells 25-36 || Wells 37-48 || Wells 49-60


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Kansas Geological Survey, Geology
Web version April 2002. Original publication date Dec. 1944.
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