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Logs of Test Holes and Wells

Listed on the following pages are logs of 33 test holes drilled by the State Geological Survey and logs of eight irrigation test holes or wells drilled by George L. Weishaar and Son of Scott City. Location of test holes drilled by the State Geological Survey in 1948 and 1949 is shown in Figure 5. Samples from test holes were studied in the field by Kenneth L. Walters, who supervised the drilling and prepared logs of the holes. The samples were subsequently studied microscopically by me.

Logs entitled sample logs were those drilled by the State Geological Survey and for which samples were collected.

Sample log of test hole 16-27-17cdd in the SE cor. SW sec. 17, T. 16 S., R. 27 W., drilled September, 1948. Surface altitude, 2,719.1 feet.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn formation
		Silt and clay, light-tan; contains gastropod shells	10	10
		Clay, silty, tan to brown	4.5	14.5
Tertiary--Pliocene
	Ogallala formation
		Clay, calcareous, pink-gray, with some sand	4	18.5
		Clay, dense, tan	6.5	25
		Clay, calcareous, with some gravel and caliche pebbles	3	28
		Gravel, medium to coarse, rounded; contains some coarse sand	15	43
		Mortar bed, tan	5.5	48.5
		Clay, tan-brown	9.5	58

Sample log of test hole 16-27-20add in the SE cor. NE sec. 20, T. 16 S., R. 27 W., drilled September, 1948. Surface altitude, 2,711.1 feet.			Thickness, feet	Depth, feet
		Silt, dark-brown (road-fill)	2	2
Quaternary--Pleistocene
	Sanborn formation
		Silt, brown; contains gastropods	10	12
		Silt, hard, dark-brown	2	14
Tertiary--Pliocene
	Ogallala formation
		Silt, calcareous, light-tan, and some sand	4	18
		Gravel, coarse to fine	16	34
		Gravel, fine to coarse, and fine to coarse sand	9	43
		Mortar bed	3	46

Sample log of test hole 16-28-30ddd in the SE cor. sec. 30, T. 16 S., R. 28 W., drilled September, 1948. Surface altitude, 2,779.0 feet.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn formation
		Silt and clay, sandy, dark-gray	2	2
		Clay, silty, sandy, tan	10	12
Tertiary--Pliocene
	Ogallala formation
		Clay, calcareous, light-tan to white, with a trace of caliche	11	23
		Caliche, pinkish-gray	2	25
		Mortar beds, light-brown, and caliche	6	31
		Caliche, white	3	34
		Mortar beds, light-brown	6	40
		Mortar beds, pinkish-brown	8	48
		Gravel, fine to medium, with sand and mortar bed	7	55
		Clay and fine sand, pinkish-brown	8	63
		Sand, coarse, and fine gravel, with thin mortar beds	9	72
		Sand, coarse, and fine gravel	3	75
		Mortar bed, gray	8	83
		Sand, gravel, and yellow chalky clay	4	87
Cretaceous--Gulfian
	Niobrara formation--Smoky Hill chalk member
		Shale, chalky, yellow	5	92

Driller's log of irrigation well of Ross Jasper, in the NW NE SE sec. 28, T. 16 S., R. 29 W. George Weishaar, driller.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn formation
		Clay	16	16
Tertiary--Pliocene
	Ogallala formation
		Gyp	18	34
		Sand and gyp streaks	41	75
		Clay	8	83
		Sand	14	97
		Sand, dirty	3	100
		Sand	17	117
		Sand, fine, and clay	11	128
		Sand	4	132
		Sand, fine	7	139
		Gravel	4	143
		Sand, dirty	7	150
		Sand, fine, and clay streaks	15	165
Cretaceous--Gulfian
	Niobrara formation--Smoky Hill chalk member
		Soapstone	5	170
		Shale

Sample log of test hole 16-30-29aaa in the NE cor. sec. 29, T. 16 S., R. 30 W., drilled September, 1948. Surface altitude, 2,872.7 feet; depth to water level, 116.5 feet, September 18, 1948.			Thickness, feet	Depth, feet
		Silt, sandy, light-brown (road fill)	2	2
Tertiary--Pliocene
	Ogallala formation
		Sand and clay	8	10
		Clay and silt, calcareous, light-tan to gray	7	17
		Caliche	10	27
		Caliche and medium sand, thin alternating layers	7	34
		Mortar bed, with sand and caliche	10	44
		Sand, fine, and silt, calcareous, brown	4	48
		Mortar bed, with sand and gravel	10	58
		Silt and fine sand, brown	2	60
		Silt, with sand and gravel	3	63
		Mortar bed, with sand and gravel	27	90
		Sand, coarse to fine, with some gravel	10	100
		Silt and very fine sand, light-brown	16	116
		Sand, fine to coarse	4	120
		Sand, very fine, and brown clay	10	130
		Clay, light-gray, and fine sand	10	140
		Sand, fine to medium	10	150
		Gravel, igneous and quartz, fine to coarse, subangular	6	156
Cretaceous--Gulfian
	Niobrara formation--Smoky Hill chalk member
		Shale, calcareous, yellow to tan	4	160

Sample log of test hole 17-27-2aaa in the NE cor. sec. 2, T. 17 S., R. 27 W., drilled September, 1948. Surface altitude, 2,641.6 feet.			Thickness, feet	Depth, feet
		Road fill	4.5	4.5
Tertiary--Pliocene
	Ogallala formation
		Clay and coarse sand and gravel	2.5	7
		Sand, coarse, with clay	3	10
		Clay, chalky, white to tan	4.5	14.5
		Sand, fine to medium, and clay	1.5	16
		Clay and silt, tan	6	22
		Clay, very sandy, light-gray	6.5	28.5
		Gravel, fine to medium, and coarse sand	1	29.5
Cretaceous--Gulfian
	Niobrara formation--Smoky Hill chalk member
		Shale, calcareous, yellow	10.5	40

Sample log of test hole 17-27-21cbb in the NW cor. SW sec. 21, T. 17 S., R. 27 W., drilled September, 1948. Surface altitude, 2,706.7 feet; depth to water level, 78.7 feet, September 25, 1948.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn formation
		Silt and very fine sand, black	1.5	1.5
		Silt and clay, with some fine quartz gravel	7.5	9
Tertiary--Pliocene
	Ogallala formation
		Clay, silty, calcareous, pink-tan	9.5	18.5
		Clay, silty, calcareous; contains some caliche pebbles	2.5	21
		Caliche, white to tan	4	25
		Clay, sandy, and caliche	5	30
		Mortar bed, soft, brown-tan	14.5	44.5
		Sand, quartz, fine to medium	9.5	54
		Clay, calcareous, and fine sand	4	58
		Mortar bed and medium sand	10.5	68.5
		Sand, medium, and fine gravel	4.5	73
		Clay, calcareous, sandy, pink-tan	6	79
		Sand, quartz, medium, angular, and fine gravel	11	90
		Gravel, medium, rounded, and coarse sand	4	94
Cretaceous--Gulfian
	Niobrara formation--Smoky Hill chalk member
		Shale, yellow to gray	10	104

Driller's log of test hole of Dwight Terwilliger in the NW SW sec. 4, T. 17 S., R. 28 W. George Weishaar, driller.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn formation
		Clay	32	32
Tertiary--Pliocene
	Ogallala formation
		Gyp	11	43
		Clay	6	49
		Gyp	17	66
		Clay	6	72
		Sand and clay	13	85
		Sand, fair	17	102
		Gyp and sand	13	115
		Sand	17	132
Cretaceous--Gulfian
	Niobrara formation--Smoky Hill chalk member
		Soapstone	4	136
		Shale	4	140

Driller's log of irrigation well of Paul Lonner in the NW cor. sec. 22, T. 17 S R. 28 W.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn formation
		Clay	25	25
Tertiary--Pliocene
	Ogallala formation
		Gyp	20	45
		Sand, hard	30	75
		Sand and gyp	20	95
		Sand	30	125
		Sand and gyp streaks	10	135
		Sand	21	156
Cretaceous--Gulfian
	Niobrara formation--Smoky Hill chalk member
		Soapstone	4	160

Sample log of test hole 17-28-32bbb in the NW cor. sec. 32, T. 17 S., R. 28 W., drilled September, 1948. Surface altitude, 2,768.7 feet.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn formation
		Silt and clay, sandy, tan to brown	8	8
Tertiary--Pliocene
	Ogallala formation
		Clay and caliche	10	18
		Caliche	9	27
		Caliche; contains some clay and sand	9	36
		Sand, quartz, medium	7	43
		Mortar bed and sand	3.5	46.5
		Sand and some thin mortar beds	9	55.5
		Mortar bed and some gravel	3	58.5
		Sand and medium gravel	4	62.5
		Sand, gravel, and thin mortar bed	7.5	70
		Sand, quartz, medium	6	76
		Caliche and some medium sand	9	85
		Mortar beds and caliche	8	93
		Sand, quartz, medium to coarse	17	110
		Sand, quartz, medium	23	133
Cretaceous--Gulfian
	Niobrara formation--Smoky Hill chalk member
		Shale calcareous, yellow	7	140

Sample log of test hole 17-29-9aaa in the NE cor. sec. 9, T. 17 S., R. 29 W., drilled September, 1948. Surface altitude, 2,810.6 feet; depth to water level, 92.2 feet, October 2, 1948.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn formation
		Silt, light-brown	1	1
		Silt and clay, tan; contains gastropod shells	11	12
Tertiary--Pliocene
	Ogallala formation
		Clay, calcareous, sandy, pink-tan	6	18
		Caliche, tan	10	28
		Mortar bed, brown	16	44
		Mortar bed and medium sand, brown	9	53
		Sand, medium to coarse	11	64
		Clay, very sandy, pink-tan	6	70
		Sand, fine to coarse	9.5	79.5
		Clay, sandy, pink-tan; contains sand and gravel and some thin mortar beds	8	87.5
		Sand fine to medium	12.5	100
		Sand: fine to medium, and yellow clay	10	110
		Sand, fine to medium, and pink-gray clay	20	130
		Sand, fine to coarse; contains green-gray clay and thin mortar beds	10	140
		Sand, fine	10	150
		Sand, fine to coarse; contains some gravel and clay	14	164
Cretaceous--Gulfian
	Niobrara formation--Smoky Hill chalk member
		Shale, calcareous, yellow-gray	6	170

Sample log of test hole 17-29-22bbb in the NW cor. sec. 22, T. 17 S., R. 29 W., drilled September, 1948. Surface altitude, 2,806.5 feet; depth to water level, 84.1 feet, September 20, 1948.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn formation
		Silt, light-brown to dark-gray	2.5	2.5
		Silt and clay, brown to dark-gray; contains some sand and gravel; calcareous in lower half	9.5	12
Tertiary--Pliocene
	Ogallala formation
		Clay, calcareous, light-gray; contains some gravel and caliche pebbles	8	20
		Caliche	6	26
		Mortar bed, buff to brown, noncalcareous, with some gravel	13	39
		Sand quartz, medium to coarse	4	43
		Gravel, fine to medium, cemented with caliche	2	45
		Mortar bed, calcareous, light-tan	5	50
		Sand and gravel, with thin mortar beds throughout; 2-inch chertlike mortar bed at 55 feet	10	60
		Mortar bed, light-gray; contains some thin clay beds	5	65
		Sand, quartz, medium to coarse, semirounded	8.5	73.5
		Clay, calcareous, sandy, pinkish-tan	6.5	80
		Sand, medium to coarse; contains some clay	6.5	86.5
		Gravel, medium, with clay and mortar beds	3.5	90
		Clay, calcareous, light-gray; contains some gravel	7	97
		Sand, medium to coarse; contains some mortar beds	3	100
		Sand, medium, with some clay and thin mortar beds	9	109
		Sand, quartz, very fine	9	118
		Sand, quartz, fine to medium	7	125
		Sand, medium	15	140
		Sand, fine to medium	4.5	144.5
		Sand, medium to coarse; contains sorne clay	6.5	151
Cretaceous--Gulfian
	Niobrara formation--Smoky Hill chalk member
		Shale, calcareous, tan to yellow	4	155
		Shale, calcareous, dark-gray to black	5	160

Sample log of test hole 17-29-33aaa in the NE cor. sec. 33, T. 17 S., R. 29 W., drilled September, 1948. Surface altitude, 2,812.1 feet; depth to water level, 72.2 feet, October 2, 1948.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn formation
		Silt, light-brown	1.5	1.5
		Silt and clay, soft, brown	11.5	13
Tertiary--Pliocene
	Ogallala formation
		Clay, silt, and fine sand; contains some fine caliche	9	22
		Mortar bed, tan to gray	8	30
		Mortar bed, hard, light-tan; contains some opal-like material	4.5	34.5
		Mortar bed, pale-green, and sand	11.5	46
		Sand, fine	7	53
		Mortar bed, light-brown, and some gravel	8	61
		Sand, medium, some fine gravel and thin mortar beds	14	75
		Mortar bed, very chalky, white	5	80
		Mortar bed, light-brown, and pink-gray clay	5	85
		Mortar bed, light-brown, and fine sand	10	95
		Sand, fine to coarse, with some fine gravel and mortar bed	8	103
		Sand, fine	11	114
		Gravel, fine to medium	3.5	117.5
		Mortar bed, calcareous, gray; contains some sand	7.5	125
Cretaceous--Gulfian
	Niobrara formation--Smoky Hill chalk member
		Shale, yellow and gray	5	130

Driller's log of test hole of D. Graves in the NW sec. 9, T. 17 S., R. 30 W.			Thickness, feet	Depth, feet
Quaternary and Tertiary--Pleistocene and Pliocene
	Sanborn and Ogallala formations
		Clay	45	45
Tertiary--Pliocene
	Ogallala formation
		Gyp	22	67
		Sand, hard	9	76
		Gyp	32	108
		Gyp, sand, and clay	24	132
		Sand, fine	23	155
		Sand and clay	20	175
		Sand	5	180
Cretaceous--Gulfian
	Niobrara formation--Smoky Hill chalk member
		Soapstone	5	185
		Shale	5	190

Sample log of test hole 17-30-4bbb in the NW cor. sec. 4, T. 17 S., R. 30 W., drilled September, 1948. Surface altitude, 2,873.2 feet; depth to water level, 105.9 feet, September 20, 1948.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn formation
		Silt, light-brown	2	2
		Silt and clay, calcareous, tan; contains numerous gastropod shells	13	15
Tertiary--Pliocene
	Ogallala formation
		Clay and silt, sandy, white	7	22
		Clay, sandy, calcareous, light grayish-green, and white caliche	8	30
		Caliche, dense, light-gray; contains some sand	5	35
		Mortar bed, red to brown, and fine sand	11.5	46.5
		Sand, very fine, and clay; contains some caliche and medium sand	3.5	50
		Sand, quartz, medium, and thin mortar beds	8	58
		Clay, very sandy, pale-green	3	61
		Sand, mortar beds, and gravel	9	70
		Mortar beds, white	8	78
		Mortar beds, pale-tan, and fine sand	3	81
		Clay, very sandy, pink-tan, and some thin hard mortar beds	4	85
		Mortar bed, fine to medium, pink-tan	12	97
		Sand, fine, with pink-tan clay	4	101
		Clay, buff-tan, with some calcareous sand	9	110
		Clay, buff-tan, with some sand and silt	10	120
		Sand, quartz and feldspar, very fine to coarse, angular	9	129
		Clay, calcareous, sandy, light-tan	15	144
		Sand, fine to medium	10	154
		Gravel, fine, rounded	6	160
		Gravel, fine to medium, rounded	10	170
		Sand, quartz, fine to medium	5	175
Cretaceous--Gulfian
	Niobrara formation--Smoky Hill chalk member
		Shale, calcareous, yellow-tan	5	180
		Shale, calcareous, greenish-brown	2	182

Sample log of test hole 17-30-17ddd in the SE cor. sec. 17, T. 17 S., R. 30 W., drilled September, 1948. Surface altitude, 2,874.0 feet; depth to water level, 82.9 feet, September 21, 1948.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn formation
		Silt, black to brown	4.5	4.5
		Silt and clay, light-tan; contains numerous gastropod shells	11.5	16
		Clay and silt, calcareous, light-tan; contains some sand	4	20
Tertiary--Pliocene
	Ogallala formation
		Clay, calcareous, light-tan; contains some sand and caliche	6	26
		Sand, very fine, cemented with clay; contains some caliche	4	30
		Sand, very fine, with clay, some mortar bed and caliche	3	33
		Caliche, white, and some gravel	4	37
		Sand and clay, calcareous, with some fine gravel	3	40
		Sand, quartz, medium	6	46
		Mortar bed and light-tan fine sand	2	48
		Sand, very fine, with pale greenish-gray clay	3	51
		Sand, medium to coarse	9	60
		Sand, medium to fine; contains some medium gravel and thin mortar beds	12	72
		Clay, reddish-tan, caliche, and some gravel	3	75
		Mortar bed, light-tan to gray	4	79
		Mortar bed, light-gray	9	88
		Mortar bed, reddish-brown	3	91
		Clay, light-tan; contains some gravel and caliche	9	100
		Sand, medium, rounded, brown	54	154
Cretaceous--Gulfian
	Niobrara formation--Smoky Hill chalk member
		Shale, calcareous, yellow to tan	5	159
		Shale, calcareous, greenish-black	1	160

Sample log of test hole 17-30-32aaa in the NE cor. sec. 32, T. 17 S., R. 30 W., drilled September, 1948. Surface altitude, 2,875.2 feet; depth to water level, 80.8 feet, September 22, 1948.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn formation
		Silt, light-brown	2.5	2.5
		Silt and clay, calcareous, light-tan	7.5	10
		Silt and clay, calcareous, light-tan; contains some gravel and caliche	7	17
Tertiary--Pliocene
	Ogallala formation
		Clay, silty, calcareous, light-tan to light-gray	5	22
		Clay, calcareous, sandy, light-gray to tan	8	30
		Caliche, white	2	32
		Clay, reddish-brown, calcareous; contains some very fine sand	5.5	37.5
		Sand, feldspar and quartz, medium	21.5	59
		Sand and thin light-gray mortar beds	6	65
		Sand, medium to coarse	17	82
		Mortar bed, light-gray, and clay	16	98
		Clay, sandy, pinkish-tan	2	100
		Mortar bed, light-gray, and sand	9	109
		Sand, medium to coarse	13	122
		Clay, sandy, light-gray, and mortar bed	14	136
Cretaceous--Gulfian
	Niobrara formation--Smoky Hill chalk member
		Shale, calcareous, yellow-tan	4	140

Driller's log of test hole of Joe Edmondson in NW sec. 35, T. 17 S., R. 30 W.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn formation
		Clay	12	12
Tertiary--Pliocene
	Ogallala formation
		Gyp	20	32
		Sand and gyp	13	45
		Sand	42	87
		Clay	8	95
		Clay, sandy	12	107
		Sand	5	112
		Clay and sand streaks	13	125
Cretaceous--Gulfian
	Niobrara formation--Smoky Hill chalk member
		Soapstone	3	128
		Shale	2	130

Sample log of test hole 18-27-20aaa in the NE cor. sec. 20, T. 18 S., R. 27 W., drilled September, 1948. Surface altitude, 2,701.2 feet.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn formation
		Silt and clay, sandy, tan	8.5	8.5
		Clay, sandy, light-tan	8	16.5
		Clay, light-tan; contains caliche pebbles	4.5	21
Tertiary--Pliocene
	Ogallala formation
		Caliche; contains some light-tan sand	7	28
		Mortar bed and fine sand, light-brown	11	39
		Caliche, very massive, white to gray	4.5	43.5
		Mortar bed and fine sand, tan	9	52.5
		Clay, noncalcareous, sandy, tan	7.5	60
		Clay, sandy, tan	7	67
		Clay, tan, and mortar bed	11	78
		Sand, fine to medium	2	80
		Mortar bed, tan	7	87
		Sand, medium to coarse, and fine gravel	4	91
		Clay, sandy, green	5	96
		Sand, medium, and fine gravel	7	103
Cretaceous--Gulfian
	Niobrara formation--Smoky Hill chalk member
		Shale, yellow	3	106
		Shale, gray-brown	3	109

Sample log of test hole 18-27-31ccc in the SW cor. sec. 31, T. 18 S., R. 27 W., drilled September, 1948. Surface altitude, 2,724.7 feet.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn formation
		Silt, sandy, light-brown	1.5	1.5
		Silt and clay, tan	8.5	10
		Clay, silty, calcareous, light-tan; contains some caliche pebbles	10	20
Tertiary--Pliocene
	Ogallala formation
		Caliche, tan-gray; contains some gravel	16	36
Cretaceous--Gulfian
	Niobrara formation--Smoky Hill chalk member
		Shale, chalky, alternating hard and soft, yellow and white	10	46
		Shale, very chalky, yellow	14	60

Sample log of test hole 18-28-17ccc in the SW cor. sec. 17, T. 18 S., R. 28 W., drilled September, 1948. Surface altitude, 2,755.8 feet.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn formation
		Clay, dark-gray to tan	6	6
		Silt and silty clay, tan; contains numerous gastropod shells and some caliche	7	13
Tertiary--Pliocene
	Ogallala formation
		Caliche	4	17
		Clay, pinkish-brown, grading into pale-tan	8	25
		Sand and silt, very fine, noncalcareous, yellow	8	33
		Mortar bed, and light-gray sand	4	37
		Sand, quartz, medium, rounded	4	41
		Caliche, light-gray	2	43
		Mortar bed, brown, and fine sand and gravel	8	51
		Clay and sand, tan, and some gravel	1	52
		Clay, calcareous, very sandy, light pinkish-gray	3.5	55.5
		Sand, quartz, fine to medium	2	57.5
		Caliche and medium gravel	2.5	60
		Caliche, medium gravel, and some sand and mortar bed	4	64
		Caliche	1	65
Cretaceous--Gulfian
	Niobrara formation--Smoky Hill chalk member
		Shale, chalky, gray to yellow	7	72
		Shale, calcareous, tannish-brown	2	74

Sample log of test hole 18-29-9aaa in the NE cor. sec. 9, T. 18 S., R. 29 W., drilled September, 1948. Surface altitude, 2,802.2 feet; depth to water level 61.2 feet, October 2, 1948.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn formation
		Clay and silt, sandy, tan; contains some caliche pebbles	10	10
Tertiary--Pliocene
	Ogallala formation
		Clay and caliche	7	17
		Caliche, blocky, light-gray	5	22
		Mortar bed, soft, light-tan	5	27
		Mortar bed, hard, brown	4.5	31.5
		Sand, medium to coarse, partially cemented	13.5	45
		Sand, fine to medium	3.5	48.5
		Mortar bed, light-gray	4.5	53
		Sand, fine to medium	3	56
		Clay, light-gray, with mortar bed and sand	2.5	58.5
		Sand, fine, partially cemented	8	66.5
		Mortar bed, gray, and gray clay	3.5	70
		Mortar bed, gray, and sand	6.5	76.5
		Clay and sand	4.5	81
		Clay, red-brown	3	84
		Sand, medium, and clay	5	89
		Clay, sandy, red-brown	6	95
		Sand, clay, and chalk fragments	6	101
		Clay, sandy, pink-gray	3	104
		Gravel, fine to medium	4	108
Cretaceous--Gulfian
	Niobrara formation--Smoky Hill chalk member
		Shale, calcareous, yellow	2	110

Sample log of test hole 18-29-15ccc in the SW cor. sec. 15, T. 18 S., R. 29 W., drilled September, 1948. Surface altitude, 2,803.2 feet; depth to water level 51.8 feet, September 16, 1948.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn formation
		Silt and clay, sandy, dark-brown	2	2
		Clay, silty and sandy, tan	6	8
		Sand, fine, brown	5	13
Tertiary--Pliocene
	Ogallala formation
		Clay and fine caliche, grayish-brown	4	17
		Caliche	12	29
		Mortar bed and caliche	10	39
		Mortar bed, brown, and fine sand	8	47
		Mortar bed and caliche	2	49
		Mortar bed; contains pale-green sand	5	54
		Sand, quartz, medium to coarse	3	57
		Mortar bed	3	60
Cretaceous--Gulfian
	Niobrara formation--Smoky Hill chalk member
		Shale, calcareous, yellow to tan	8	68

Sample log of test hole 18-30-8aaa in the NE cor. sec. 8, T. 18 S., R. 30 W., drilled September, 1948. Surface altitude, 2,882.8 feet; depth to water level 75.0 feet, September 22, 1948.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn formation
		Silt and clay, dense, black	7	7
		Clay, sandy, light-tan; contains gastropod shells	9	16
		Clay, calcareous, pinkish-brown to gray; contains some caliche gravel	7	23
Tertiary--Pliocene
	Ogallala formation
		Caliche, soft, with some caliche gravel, white	7	30
		Caliche, predominantly hard, white	7	37
		Clay, very sandy, noncalcareous, reddish-brown	10	47
		Sand, medium; contains some gray mortar bed	7	54
		Sand, medium to coarse; contains some gravel	5	59
		Mortar bed, fine, tan	9	68
		Clay, very sandy, light-gray; contains some thin mortar beds	7	75
		Sand, fine to medium	8	83
		Mortar bed	8	91
		Mortar bed, fine, brown	9	100
		Clay, sandy, pinkish-gray	5	105
		Mortar bed, white, mottled with black	4	109
		Sand, medium to coarse, with some clay	9	118
Cretaceous--Gulfian
	Niobrara formation--Smoky Hill chalk member
		Shale, calcareous, yellow-gray	2	120

Sample log of test hole 18-30-21bbb in the NW cor. sec. 21, T. 18 S., R. 30 W., drilled September, 1948. Surface altitude, 2,882.1 feet; depth to water level 73.5 feet, September 23, 1948.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn formation
		Silt, dense, black-brown	2.5	2.5
		Clay and silt, calcareous, tan, with some sand	8.5	11
		Clay, silty, calcareous, brown-tan; contains caliche gravel and some gastropod shells	9	20
		Clay, silty, light-tan, with some gravel	5.5	25.5
Tertiary--Pliocene
	Ogallala formation
		Caliche, light-gray, and clay	6	31.5
		Caliche, massive, hard, light-gray	7.5	39
		Mortar bed and caliche, hard, calcareous; contains some unconsolidated sand	11	50
		Mortar bed, reddish-brown, and fine sand	18	68
		Caliche, light-gray, with thin chalky clay bed at 68 feet and some mortar bed	10	78
		Clay, chalky, white to gray; contains some medium sand	6	84
		Clay, sandy, pinkish-tan	7	91
		Mortar bed, hard, tan; contains some weathered Niobrara (chalk) formation	1.5	92.5
Cretaceous--Gulfian
	Niobrara formation--Smoky Hill chalk member
		Shale, calcareous, yellow-tan	7.5	100

Sample log of test hole 18-30-33bbb in the NW cor. sec. 33, T. 18 S., R. 30 W., drilled September, 1948. Surface altitude, 2,874.1 feet; depth to water level 70.2 feet, September 23, 1948.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn formation
		Silt, black	4.5	4.5
		Silt and clay, tan; contains gastropod shells	13.5	18
Tertiary--Pliocene
	Ogallala formation
		Clay and fine quartz sand, calcareous	4.5	22.5
		Clay, chalky, sandy, calcareous, gray to tan; contains some caliche and gravel	6.5	29
		Clay, calcareous, white to pink-tan; contains some caliche and gravel	5	34
		Mortar bed, calcareous, light-gray	10	44
		Mortar bed, light-gray and tan	6	50
		Mortar bed, brown-tan	5	55
		Mortar bed, calcareous, light-gray	9	64
		Clay, chalky, sandy, white to pinkish-gray	6	70
		Mortar bed, calcareous, hard	7.5	77.5
		Mortar bed, hard, brown-tan	2.5	80
		Clay, red-tan, and sand and gravel	19	99
Cretaceous--Gulfian
	Niobrara formation--Smoky Hill chalk member
		Shale, calcareous, yellow-tan	6	105

Sample log of test hole 19-27-28bbb in the NW cor. sec. 28, T. 19 S., R. 27 W., drilled September, 1948. Surface altitude, 2,714.0 feet; depth to water level 60.0 feet, September 24, 1948.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn formation
		Silt, light-brown	1.5	1.5
		Silt, sandy, tan	10.5	12
Tertiary--Pliocene
	Ogallala formation
		Caliche, soft, white, and pink-tan clay	11	23
		Sand, fine to medium, rounded	5.5	28.5
		Sand, medium, and some gravel	8	36.3
		Gravel, medium, and tan mortar bed; contains yellow clay	4.5	41
		Sand, fine to medium, with tan clay	6	47
		Sand, quartz, medium, rounded	3	50
		Sand, coarse, and fine gravel	17	67
Cretaceous--Gulfian
	Niobrara formation--Smoky Hill chalk member
		Shale, calcareous, yellow	3	70

Sample log of test hole 19-28-18ddd in the SE cor. sec. 18, T. 19 S., R. 28 W., drilled September, 1948. Surface altitude, 2,790.4 feet.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn formation
		Silt, sandy, light-brown	1.5	1.5
		Clay, sandy, tan	8.5	10
Tertiary--Pliocene
	Ogallala formation
		Clay, sandy, light-tan	6	16
		Clay, very calcareous, light-gray	5	21
		Clay, noncalcareous, very sandy, reddish-brown; contains some gravel	5	26
		Clay, plastic, calcareous, white	5	31
		Clay, calcareous, plastic, sandy, white	6	37
		Clay, very light-tan, and coarse sand and gravel	10	47
		Sand, medium to coarse and fine to medium rounded quartz gravel	5	52
		Gravel, fine to coarse, rounded	8	60
		Gravel, fine to coarse, mostly quartz, with some fragments of chalk	4	64
Cretaceous--Gulfian
	Niobrara formation--Smoky Hill chalk member
		Shale, sandy, calcareous, tan to gray	6	70

Driller's log of test hole of John Hineman in NE sec. 19, T. 19 S., R. 28 W.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn formation
		Clay	18	18
Tertiary--Pliocene
	Ogallala formation
		Clay and gyp	7	25
		Gyp	7	32
		Sand	5	37
		Clay	5	42
		Clay and fine sand	11	53
		Sand	16	69
Cretaceous--Gulfian
	Niobrara formation--Smoky Hill chalk member
		Soapstone	8	77
		Shale	3	80

Driller's log of test hole of Jim Jasper in the NW cor. sec. 34, T. 19 S., R. 28 W.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn formation
		Clay	25	25
Tertiary--Pliocene
	Ogallala formation
		Gyp	5	30
		Clay	5	35
		Sand	12	47
		Rock	2	49
		Sand and gyp streaks	9	58
		Clay, yellow	7	65
		Sand, fine	12	77
		Sand, good	5	82
		Gyp and sand	3	85
Cretaceous--Gulfian
	Niobrara formation--Smoky Hill chalk member
		Soapstone	7	92
		Shale	3	95

Sample log of test hole 19-29-9ddd in the SE cor. sec. 9, T. 19 S., R. 29 W., drilled September, 1948. Surface altitude, 2,831.8 feet.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn formation
		Silt and clay, sandy, light-tan, calcareous; contains some gravel	10	10
		Clay, silty, sandy, light-tan; contains some gravel	8	18
		Clay, sandy, light-tan	4	22
Tertiary--Pliocene
	Ogallala formation
		Clay, calcareous, white to light-gray; contains some caliche	6	28
		Clay, pinkish-gray, calcareous, and very fine sand; contains some gravel	13	41
		Gravel, fine to medium, and coarse sand	1.5	42.5
		Clay, sandy, calcareous, light pinkish-gray	4.5	47
Cretaceous--Gulfian
	Niobrara formation--Smoky Hill chalk member
		Chalk	4	51
		Shale, sandy, calcareous, light-yellow	9	60

Sample log of test hole 19-29-34ccc in the SW cor. sec. 34, T. 19 S., R. 29 W., drilled September, 1948. Surface altitude, 2,854.2 feet.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn formation
		Silt, brown, and some sand	4	4
		Silt and clay, light-gray; contains some sand and gravel	10.5	14.5
Tertiary--Pliocene
	Ogallala formation
		Clay, slightly sandy, calcareous, pinkish-tan	12	26.5
		Clay, sandy, pinkish-brown and white; contains some gravel	9.5	36
		Sand and gravel, quartz and feldspar; contains some clay	8	44
		Sand, medium to coarse; contains some fine gravel and lenses of mortar bed	3 5	47.5
		Sand and fine gravel	13.5	61
Cretaceous--Gulfian
	Niobrara formation--Smoky Hill chalk member
		Shale, calcareous, yellow	2	63

Sample log of test hole 19-30-21bbb in the NW cor. sec. 21, T. 19 S., R. 30 W., drilled September, 1948. Surface altitude, 2,900.6 feet.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn formation
		Silt and clay, sandy, tan; contains caliche pebbles	10	10
Tertiary--Pliocene
	Ogallala formation
		Clay, silty, sandy; contains some caliche	10	20
		Clay, silty, sandy, greenish-tan; contains a small amount of gravel	7	27
		Caliche and clay, chalky, white	15	42
		Mortar bed, pinkish-tan	7	49
Cretaceous--Gulfian
	Niobrara formation--Smoky Hill chalk member
		Shale, calcareous, yellow	4	53

Sample log of test hole 20-28-20ccc in the SW cor. sec. 20, T. 20 S., R. 28 W, drilled September, 1948. Surface altitude, 2,817.0 feet.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn formation
		Silt, sandy, gray to brown	2	2
		Clay and silt, granular texture, calcareous; contains sand and some gravel and gastropod shells	8	10
		Silt and clay, reddish-brown, calcareous; contains some fine sand	7	17
		Clay, calcareous, light-tan	6	23
Tertiary--Pliocene
	Ogallala formation
		Caliche, with some quartz and granite gravel	9	32
		Mortar bed	5	37
		Gravel, fine, and calcareous clay	2	39
		Gravel, fine to medium, rounded quartz; contains some caliche and mortar bed	5	44
		Mortar bed, very tightly cemented	1.5	45.5

Sample log of test hole 20-28-24dad in the SE NE SE sec. 24, T. 20 S., R. 28 W., drilled September, 1948. Surface altitude, 2,622.2 feet.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn formation
		Silt, sandy, tan	5	5
		Silt and clay, sandy, tan	4	9
		Clay and silt, yellow	8	17
		Clay, silty, tan-brown	4	21
Cretaceous--Gulfian
	Niobrara formation--Fort Hays limestone member
		Limestone, soft, white	9	30

Sample log of test hole 20-28-27dcc in the SW cor. SW SE sec. 27, T. 20 S., R. 28 W., drilled October, 1949. Surface altitude, 2,731.1 feet.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn formation
		Silt, dark-brown	4	4
		Silt, tan	6	10
		Silt, dark red-brown	8	18
		Silt, red-brown	2	20
		Silt and clay, red-brown to gray; contains a very small amount of sand and gravel at the base	19	39
		Sand, medium to coarse; contains yellow clay	5	44
Cretaceous--Gulfian
	Niobrara formation--Smoky Hill chalk member
		Chalk, yellow	3	47
		Shale, blue	3	50

Sample log of test hole 20-28-30ccc in the SW cor. sec. 30, T. 20 S., R. 28 W., drilled September, 1948. Surface altitude, 2,824.6 feet; depth to water level, 34.3 feet, September 25, 1948.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn formation
		Silt, sandy, black	1.5	1.5
		Clay, silty and sandy, tan	11.5	13
Tertiary--Pliocene
	Ogallala formation
		Clay, calcareous, white to light-tan; contains some caliche pebbles	5	18
		Caliche, massive, pink-tan	6	24
		Clay, sandy, pink-gray	2.5	26.5
		Sand and gravel, and mortar beds, thin, soft, light-tan	9.5	36
Cretaceous--Gulfian
	Niobrara formation--Smoky Hill chalk member
		Shale, calcareous, yellow to tan	14	50

Sample log of test hole 20-29-27bbb in the NW cor. sec. 27, T. 20 S., R. 29 W., drilled September, 1948. Surface altitude, 2,861.5 feet.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn formation
		Silt, sandy, dark-brown	3	3
		Silt and clay, sandy, calcareous	10	13
Tertiary--Pliocene
	Ogallala formation
		Clay, slightly sandy, buff to tan	3	16
		Clay, calcareous, light-tan, with some caliche and gravel	7	23
		Clay, light-tan, with caliche	5	28
		Caliche and clay, light-gray	3	31
		Clay, quite sandy, calcareous, pinkish-tan grading into pinkish-brown	3	34
		Clay, calcareous, pinkish-gray, with gravel	4.5	38.5
		Gravel, fine to medium, rounded and semi-rounded quartz and feldspar	10	48.5
		Gravel, fine to coarse; contains some medium quartz sand	7.5	56
Cretaceous--Gulfian
	Niobrara formation--Smoky Hill chalk member
		Shale, calcareous, yellow	4	60

Sample log of test hole 20-30-21ccc in the SW cor. sec. 21, T. 20 S., R. 30 W., drilled September, 1948. Surface altitude, 2,842.8 feet; depth to water level, 14.7 feet, September 25, 1948.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn formation
		Silt, sandy, black	4.5	4.5
	Meade (?) formation
		Clay, sandy, green-gray	15.5	20
		Clay, very sandy, green-gray	6	26
		Sand, with some clay	4	30
		Clay, silty, tan	6	36
		Sand, very fine, silty	2	38
		Clay, sandy, greenish-tan; contains iron-stained streaks	18	56
		Clay, sandy, greenish-tan; contains some fine gravel	4	60
		Clay, sandy, tan	10	70
		Clay, sandy, gray	8	78
		Sand, fine, predominantly quartz	2	80
		Gravel, fine to medium; contains some clay and fragments of chalk	9	89
Cretaceous--Gulfian
	Niobrara formation--Smoky Hill chalk member
		Shale, green-black	1	90

Sample log of test hole 20-30-31ccc in the SW cor. sec. 31, T. 20 S., R. 30 W., drilled October, 1949. Surface altitude, 2,893.1 feet; depth to water level, 35.3 feet, October 12, 1949.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
		Dune sand
		Sand, medium to coarse	4	4
	Meade (?) formation
		Clay and silt, cream-colored	6	10
		Clay, silt, and fine to very fine sand, compact, light-brown	10	20
		Sand, very fine to fine, compact, light-brown; contains limy zones	32	52
		Sand, very fine to fine, compact, light-brown; contains calcium carbonate decreasing with depth	18	70
		Sand, very fine to fine, compact, light-brown; contains a small amount of medium to coarse sand	23	93
		Sand, very fine to fine, compact, light-brown	11	104
		Clay, brown	6	110
		Sand, fine to coarse; contains a little gravel	4	114
		Silt, and fine to very fine sand, sticky	6	120
Cretaceous--Gulfian
	Niobrara formation--Smoky Hill chalk member
		Chalk, yellow	5	125
		Shale, gray	5	130

Driller's log of test hole of R. F. Plummer in NW sec. 33, T. 20 S., R. 30 W.			Thickness, feet	Depth, feet
Quaternary--Pleistocene
	Sanborn and Meade (?) formations
		Clay	45	45
		Clay, sandy	10	55
		Clay	15	70
Cretaceous--Gulfian
	Niobrara formation--Smoky Hill chalk member
		Soapstone	10	80

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Kansas Geological Survey, Geology
Placed on web Jan. 18, 2008; originally published Sept., 1951.
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