| 285. Sample log of test hole at the SE cor. sec. 1, T. 24 S., R. 3 W., Harvey County; drilled by the City of Wichita, 1938. Surface altitude, 1,431.4 feet. (Samples studied by Fred T. Holden.) | Thickness, feet | Depth, feet |
| Quaternary--Pleistocene |
 | McPherson formation |
 |  | Soil, brown to tan | 6 | 6 |
 |  | Silt and clay, red-brown, and fine sand | 19 | 25 |
 |  | Sand; contains some tan silt and gravel | 5 | 30 |
 |  | Sand, fine, and gray silt and clay | 4 | 34 |
 |  | Silt, brown to gray, and sand; contains some clay and gravel | 8 | 42 |
 |  | Gravel, medium to coarse | 2 | 44 |
 |  | Sand, coarse, and fine gravel | 20 | 64 |
 |  | Silt and clay, gray to tan, and fine sand | 20 | 84 |
 |  | Sand; contains pebbles of shale and nodules of calcium carbonate | 35 | 119 |
 |  | Silt and clay, tan, and fine sand | 2 | 121 |
 |  | Sand | 6 | 127 |
 |  | Sand, fine, and tan silt and clay | 4 | 131 |
 |  | Silt and clay, gray to tan, and fine sand | 48 | 179 |
 |  | Sand; contains clay balls | 3 | 182 |
 |  | Silt and clay, brown | 6 | 188 |
 |  | Sand; contains clay balls, nodules of calcium carbonate, and pebbles of shale | 13 | 201 |
 |  | Silt and clay, gray to tan | 10 | 211 |
 |  | Sand | 12 | 223 |
 |  | Clay and silt, tan | 2 | 225 |
 |  | Sand, coarse; contains clay balls | 7 | 232 |
 |  | Clay and silt, gray-green | 1 | 233 |
 |  | Sand; contains pebbles of green shale | 19 | 252 |
 |  | Clay and silt, gray | 2 | 254 |
 |  | Sand, fine to medium | 1 | 255 |
| Permian--Leonardian |
 | Wellington formation |
 |  | Shale, dark-gray | 19 | 274 |
| 287. Sample log of test hole at the SE cor. sec. 11, T. 24 S., R. 3 W., Harvey County; drilled by the City of Wichita, 1938. Surface altitude, 1,424.1 feet. (Samples studied by Charles C. Williams.) | Thickness, feet | Depth, feet |
| Quaternary--Pleistocene |
 | McPherson formation |
 |  | Soil, brown; composed of silt and very fine sand | 2 | 2 |
 |  | Silt and clay, buff to brown, calcareous | 1 | 3 |
 |  | Sand, fine to very fine, and buff to brown calcareous silt; contains many small nodules of calcium carbonate | 1 | 4 |
 |  | Sand, medium to fine, and coarse sand; contains some large pebbles of gravel and some nodules of calcium carbonate | 3 | 7 |
 |  | Gravel, fine to coarse, and coarse to medium sand | 1 | 8 |
 |  | Sand, coarse to medium, and fine to coarse gravel; poorly sorted | 3 | 11 |
 |  | Silt and clay, gray to buff; contains very fine to fine sand | 2 | 13 |
 |  | Sand, medium to coarse, and fine to medium gravel | 6 | 19 |
 |  | Gravel, fine to medium, and coarse to medium sand | 4 | 23 |
 |  | Sand, coarse to medium, and fine gravel | 2 | 25 |
 |  | Gravel, fine to coarse, and coarse sand; contains fragments of silt and clay balls | 7 | 32 |
 |  | Silt, buff; contains some very fine sand | 11 | 43 |
 |  | Sand, coarse to medium, and fine to medium gravel | 7 | 50 |
 |  | Gravel, coarse to fine, and coarse sand | 6 | 56 |
 |  | Sand, coarse to medium, and fine to medium gravel | 6 | 62 |
 |  | Silt, gray to buff, and very fine sand | 5 | 67 |
 |  | Silt, very calcareous, gray, and very fine sand; contains plant remains and fragments of snail shells | 11 | 78 |
 |  | Silt, calcareous, buff | 5 | 83 |
 |  | Sand, medium to very fine; contains calcareous buff silt | 5 | 88 |
 |  | Sand, medium to fine, and coarse sand | 3 | 91 |
 |  | Sand, coarse to fine; contains some fine gravel | 2 | 93 |
 |  | Gravel, fine, and coarse to fine sand; poorly sorted | 2 | 95 |
 |  | Gravel, fine, and coarse sand | 3 | 98 |
 |  | Sand, coarse to medium, and fine gravel | 2 | 100 |
 |  | Sand, coarse; contains some medium sand; well-sorted | 2 | 102 |
 |  | Silt, very calcareous, gray, and very fine to fine sand; contains many nodules of calcium carbonate | 1 | 103 |
 |  | Gravel, fine, and medium to coarse sand; contains some gray silt | 4 | 107 |
 |  | Gravel, fine; well-sorted | 1 | 108 |
 |  | Gravel, fine to medium; contains fragments of silt and clay balls | 3 | 111 |
 |  | Sand, medium to coarse, and buff silt | 4 | 115 |
 |  | Silt, very calcareous, gray; contains very fine to fine sand | 2 | 117 |
 |  | Sand, coarse to medium | 1 | 118 |
 |  | Silt, buff, and sand, very fine to fine | 4 | 122 |
 |  | Silt and clay, calcareous, gray to buff; contains very fine to fine sand, nodules of calcium carbonate, and fragments of snail shells | 10 | 132 |
 |  | Sand, coarse to fine, and buff silt | 8 | 140 |
 |  | Sand, medium to fine, and coarse sand | 17 | 157 |
 |  | Sand, medium to fine; contains some silt | 5 | 162 |
 |  | Silt, buff, and very fine to fine sand; contains limonite | 11 | 173 |
 |  | Silt, calcareous, buff, and very fine to fine sand | 27 | 200 |
 |  | Silt and clay, very calcareous, gray, and very fine to fine sand; contains many nodules of calcium carbonate | 5 | 205 |
 |  | Silt, calcareous, buff, and very fine to fine sand; contains nodules of calcium carbonate | 13 | 218 |
 |  | Sand, coarse to fine; contains some calcareous buff silt | 6 | 224 |
 |  | Sand, coarse to fine, and fine gravel; contains nodules of calcium carbonate | 4 | 228 |
 |  | Gravel, fine, and coarse sand; well-sorted | 3 | 231 |
 |  | Gravel, fine to medium, and coarse sand; contains pebbles of chert and nodules of calcium carbonate | 4 | 235 |
 |  | Sand, medium to coarse, and fine sand | 2 | 237 |
 |  | Sand, medium to fine, and coarse sand; contains fragments of snail shells | 1 | 238 |
 |  | Sand, medium to fine, coarse sand, and fine gravel | 8 | 246 |
 |  | Silt, calcareous, buff, and very fine to coarse sand | 1 | 247 |
 |  | Sand, medium to coarse; contains large pebbles of greenish-gray shale | 1 | 248 |
| Permian--Leonardian |
 | Wellington formation |
 |  | Shale, calcareous, bluish-gray | 8 | 256 |
| 291. Sample log of test hole at the NW cor. sec. 23, T. 24 S., R. 3 W., Harvey County; drilled by State Geological Survey, 1944. Surface altitude, 1,430.4 feet. (Samples studied by O. S. Fent and Charles C. Williams.) | Thickness, feet | Depth, feet |
| Quaternary--Pleistocene |
 | McPherson formation |
 |  | Clay and silt, gray | 6 | 6 |
 |  | Silt, light-brown; contains some coarse to fine sand | 2 | 8 |
 |  | Gravel, medium to fine, coarse to fine sand, and buff silt | 2 | 10 |
 |  | Gravel, coarse to fine, and coarse sand | 30 | 40 |
 |  | Gravel, fine, and coarse to medium sand | 12 | 52 |
 |  | Silt, buff, and medium to fine sand | 20 | 72 |
 |  | Silt, greenish-gray; contains some medium to fine sand | 9 | 81 |
 |  | Gravel, medium to fine, and coarse sand; contains light-gray silt | 20 | 101 |
 |  | Silt, greenish-gray; contains some coarse to fine sand | 6 | 107 |
 |  | Gravel, medium to fine, and coarse sand; contains light-gray silt | 20 | 127 |
 |  | Silt, buff to gray; contains some medium to fine sand | 11 | 138 |
 |  | Sand, coarse to fine; contains fine gravel and gray silt | 7 | 145 |
 |  | Silt, light-brown to gray; contains coarse to fine sand | 9 | 154 |
 |  | Gravel, fine, and coarse sand; contains light-gray silt | 19 | 173 |
 |  | Silt, buff to gray; contains nodules of calcium carbonate | 22 | 195 |
 |  | Silt, buff; contains gravel and sand and nodules of calcium carbonate | 3 | 198 |
| Permian--Leonardian |
 | Wellington formation |
 |  | Shale, gray to maroon | 8 | 206 |
| 292. Sample log of test hole at the SE cor. sec. 29, T. 24 S., R. 3 W., Harvey County; drilled by State Geological Survey, 1944. Surface altitude, 1,434.2 feet. (Samples studied by O. S. Fent and Charles C. Williams.) | Thickness, feet | Depth, feet |
| Quaternary--Pleistocene |
 | McPherson formation |
 |  | Silt and clay, brown to gray | 8 | 8 |
 |  | Sand, medium to fine; contains some fine gravel | 7 | 15 |
 |  | Silt, greenish-gray; contains some coarse to fine sand | 4 | 19 |
 |  | Sand, medium to fine | 8 | 27 |
 |  | Silt, greenish-gray | 9 | 36 |
 |  | Sand, coarse to fine | 4 | 40 |
 |  | Gravel, fine to coarse, and coarse sand; contains some gray silt | 10 | 50 |
 |  | Gravel, coarse to fine; and coarse to medium sand; contains buff to gray silt | 20 | 70 |
 |  | Silt, yellow to buff, and fine sand | 6 | 76 |
 |  | Gravel, fine to coarse, and coarse sand | 4 | 80 |
 |  | Silt, buff; contains fine gravel, coarse sand, and nodules of calcium carbonate | 13 | 93 |
 |  | Gravel, medium to fine, and coarse sand; contains buff silt | 60 | 153 |
| Permian--Leonardian |
 | Wellington formation |
 |  | Shale, gray-green and blue-gray | 7 | 160 |
| 293. Sample log of test hole at the SE cor. sec. 31, T. 24 S., R. 3 W., Harvey County; drilled by the City of Wichita, 1939. Surface altitude, 1,434.3. feet. (Samples studied by John C. Frye, Bruce F. Latta, and Fred T. Holden.) | Thickness, feet | Depth, feet |
| Quaternary--Pleistocene and Recent |
 | Alluvium and McPherson formation |
 |  | Soil, gray to brown | 3 | 3 |
 |  | Sand, fine, and yellow to blue-gray silt | 6 | 9 |
 |  | Sand, coarse, and fine gravel | 17 | 26 |
 |  | Silt, gray to tan; contains fine sand and clay | 56 | 82 |
 |  | Sand | 11 | 93 |
 |  | Sand and gravel | 14 | 107 |
 |  | Silt, tan, and fine sand | 11 | 118 |
 |  | Sand and gravel | 14 | 132 |
 |  | Silt, tan; contains sand and clay | 12 | 144 |
 |  | Sand, coarse, and fine gravel; contains clay balls | 25 | 169 |
 |  | Sand; contains clay balls | 37 | 206 |
 |  | Gravel | 1 | 207 |
 |  | Silt, clay, and fine sand | 12 | 219 |
 |  | Sand and gravel | 23 | 242 |
 |  | Sand, medium; contains tan silt | 19 | 261 |
 |  | Sand and gravel; contains clay balls | 3 | 264 |
 |  | Sand, silt, and gravel; contains pebbles of shale and ironstone and nodules of calcium carbonate | 3 | 267 |
| Permian--Leonardian |
 | Wellington formation |
 |  | Shale, lead-gray | 6 | 273 |
| 305. Sample log of test hole at the NW cor. sec. 2, T. 25 S., R. 2 W., Sedgwick County; drilled for the City of Wichita, 1938. Surface altitude 1,391.2 feet. Samples studied by Fred T. Holden.) | Thickness, feet | Depth, feet |
| Quaternary--Pleistocene |
 | McPherson formation |
 |  | Soil, brown | 3 | 3 |
 |  | Sand, medium, and tan silt | 2 | 5 |
 |  | Sand, medium, and gravel | 1 | 6 |
 |  | Silt, tan to gray, and fine sand | 11 | 17 |
 |  | Sand, coarse, and fine gravel; contains silt, tan | 8 | 25 |
 |  | Sand, fine to medium; contains silt and clay balls | 1 | 26 |
 |  | Silt and clay, gray to tan, and fine sand | 4 | 30 |
 |  | Sand, fine to medium; contains fine gravel and tan silt | 5 | 35 |
 |  | Silt and clay, dark-gray, and fine sand | 21 | 56 |
 |  | Silt, tan, and fine sand | 6 | 62 |
 |  | Sand, coarse, and fine gravel | 1 | 63 |
 |  | Sand, medium to fine | 3 | 66 |
 |  | Sand, fine, and gray-green silt | 1 | 67 |
 |  | Sand, fine to coarse, contains thin beds of gray silt | 20 | 87 |
 |  | Silt and clay, gray | 1 | 88 |
 |  | Sand, coarse; contains fragments of silt and clay balls and nodules of calcium carbonate | 14 | 102 |
 |  | Silt and clay, gray, and fine sand | 37 | 139 |
 |  | Sand, fine, and gray silt; contains shells of snails and clams, and fragments of bone | 7 | 146 |
 |  | Sand, medium; contains silt and clay balls | 14 | 160 |
 |  | Sand, fine, and gray silt | 1 | 161 |
 |  | Sand, medium to fine; contains fragments of bone | 1 | 162 |
 |  | Silt and clay, gray-green | 11 | 173 |
 |  | Sand, coarse; contains clay balls and calcareous nodules | 2 | 175 |
 |  | Silt, gray, and fine sand | 1 | 176 |
 |  | Sand, medium | 13 | 189 |
 |  | Silt, gray-green; contains fine sand and clay | 7 | 196 |
 |  | Sand, fine to coarse, and light-tan silt | 9 | 205 |
 |  | Silt and clay, gray-green | 1 | 206 |
 |  | Sand, fine to coarse; contains nodules of calcium carbonate | 8 | 214 |
 |  | Silt, dark-gray | 1 | 215 |
 |  | Silt and clay, gray to brown | 26 | 241 |
| Permian--Leonardian |
 | Wellington formation |
 |  | Shale, dark-gray to green-gray | 6 | 247 |
| 306. Sample log of test hole at the NE cor. sec. 9, T. 25 S., R. 2 W., Sedgwick County; drilled by the City of Wichita, 1938. Surface altitude, 1,395.6 feet. (Samples studied by Charles C. Williams.) | Thickness, feet | Depth, feet |
| Quaternary--Pleistocene |
 | McPherson formation |
 |  | Soil, sandy | 2 | 2 |
 |  | Silt, buff, and very fine sand; contains nodules of calcium carbonate | 2 | 4 |
 |  | Sand, medium to fine; contains some coarse sand and fine gravel | 2 | 6 |
 |  | Sand, medium to coarse, and fine to coarse gravel | 3 | 9 |
 |  | Gravel, fine to coarse, and coarse sand | 5 | 14 |
 |  | Sand, coarse to medium | 2 | 16 |
 |  | Gravel, coarse to fine, and coarse to medium sand | 6 | 22 |
 |  | Gravel, coarse to fine | 2 | 24 |
 |  | Gravel, fine to coarse, and coarse to medium sand | 2 | 26 |
 |  | Silt, gray, and very fine to fine sand | 1 | 27 |
 |  | Gravel, fine to medium, and coarse to medium sand | 2 | 29 |
 |  | Sand, fine to coarse; contains fine to medium gravel and gray silt; poorly sorted | 2 | 31 |
 |  | Gravel, fine to coarse, and coarse to medium sand | 4 | 35 |
 |  | Sand, medium to coarse, and fine to coarse gravel; poorly sorted | 4 | 39 |
 |  | Sand, fine to coarse, and fine to medium gravel; contains some buff silt and clay | 2 | 41 |
 |  | Gravel, fine to coarse, and coarse to medium sand | 1 | 42 |
 |  | Sand, very fine to medium, and buff silt | 12 | 54 |
 |  | Sand, coarse to medium, and fine to medium gravel | 6 | 60 |
 |  | Silt, buff, and very fine to fine sand | 1 | 61 |
 |  | Sand, medium to coarse, and fine to medium gravel | 1 | 62 |
 |  | Sand, fine to coarse, and fine to medium gravel; contains fragments of silt and clay balls | 5 | 67 |
 |  | Sand, coarse to fine, and fine to medium gravel; contains silt and clay | 5 | 72 |
 |  | Gravel, fine to medium, and coarse to medium sand | 1 | 73 |
 |  | Silt and clay, very calcareous, buff, and very fine to fine sand | 18 | 91 |
 |  | Silt and clay, calcareous, buff; contains thin beds of fine to coarse gravel | 22 | 113 |
 |  | Silt, calcareous, buff, and very fine to medium sand | 8 | 121 |
 |  | Sand, fine to coarse, and buff silt | 4 | 125 |
 |  | Sand, coarse to fine, and fine gravel | 7 | 132 |
 |  | Sand, coarse to medium; contains buff silt | 6 | 138 |
 |  | Sand, medium, mostly quartz, very well sorted | 2 | 140 |
 |  | Sand, medium to coarse, mostly quartz | 1 | 141 |
 |  | Silt, very calcareous, buff, and coarse to fine sand | 2 | 143 |
 |  | Sand, coarse to fine; most grains composed of quartz but some are feldspar and blue-green chert | 7 | 150 |
 |  | Sand, coarse to medium; contains clay balls | 4 | 154 |
 |  | Gravel, coarse to medium, and coarse to medium sand | 2 | 156 |
 |  | Sand, coarse to medium, and fine gravel; most grains and pebbles composed of quartz, but some are feldspar and olive-green chert | 3 | 159 |
 |  | Sand, medium to coarse | 1 | 160 |
 |  | Silt, calcareous, buff, and very fine to fine sand; contains nodules of calcium carbonate | 7 | 167 |
 |  | Sand, coarse to medium, and fine gravel | 5 | 172 |
 |  | Sand, coarse to fine; contains fine to coarse gravel, buff silt, pebbles of green-gray shale, and nodules of calcium carbonate | 5 | 177 |
 |  | Sand, coarse to medium, and fine gravel; contains pebbles of green-gray shale and nodules of calcium carbonate | 3 | 180 |
 |  | Silt, calcareous, buff, and very fine sand; contains nodules of calcium carbonate | 17 | 197 |
 |  | Sand, fine to coarse, and fine to medium gravel; poorly sorted | 9 | 206 |
 |  | Sand, coarse to medium; contains fine gravel | 3 | 209 |
 |  | Sand, coarse to fine, and fine gravel; contains fragments of silt, clay balls, and nodules of calcium carbonate | 4 | 213 |
 |  | Sand, fine to coarse; contains some fine gravel | 10 | 223 |
 |  | Sand, fine to coarse, and fine to coarse gravel; poorly sorted; contains pebbles of shale and nodules of calcium carbonate | 5 | 228 |
| Permian--Leonardian |
 | Wellington formation |
 |  | Shale, calcareous, gray, and thin beds of gray limestone | 5 | 233 |
| 307. Sample log of test hole at the NW cor. sec. 16, T. 25 S., R. 2 W., Sedgwick County; drilled by the City of Wichita, 1938. Surface altitude, 1,397.0 feet. (Samples studied by Charles C. Williams.) | Thickness, feet | Depth, feet |
| Quaternary--Pleistocene and Recent |
 | Alluvium and McPherson formation |
 |  | Soil, sandy | | |
 |  | Sand, fine to coarse, and tan silt | 4 | 4 |
 |  | Sand, fine to coarse, and fine to medium gravel poorly sorted | 1 | 5 |
 |  | Gravel, fine to coarse, and coarse to fine sand; poorly sorted | 8 | 13 |
 |  | Gravel, coarse to fine, and coarse to medium sand | 16 | 29 |
 |  | Sand, coarse to fine, and fine to medium gravel; contains fragments of silt and clay balls | 2 | 31 |
 |  | Gravel, fine to medium, and coarse to medium sand | 5 | 36 |
 |  | Sand, coarse to fine, and fine to medium gravel; contains fragments of silt and clay balls | 18 | 54 |
 |  | Gravel, medium to fine, and coarse to medium sand | 3 | 57 |
 |  | Gravel, coarse to medium | 1 | 58 |
 |  | Sand, fine to coarse, and fine to coarse gravel; poorly sorted; contains silt and clay | 1 | 59 |
 |  | Silt, buff, and very fine to fine sand | 8 | 67 |
 |  | Sand, very fine to fine, and buff silt | 19 | 86 |
 |  | Sand, very fine to fine | 4 | 90 |
 |  | Sand, fine to coarse, contains some fine to medium gravel | 12 | 102 |
 |  | Sand, fine to very fine, and buff silt | 9 | 111 |
 |  | Silt, buff, and very fine to fine sand | 8 | 119 |
 |  | Sand, fine to very fine, and buff silt | 10 | 129 |
 |  | Silt, buff, and very fine to fine sand | 28 | 157 |
 |  | Sand, very fine, and buff silt; contains nodules of calcium carbonate | 4 | 161 |
 |  | Silt, calcareous, buff, and very fine to fine sand; contains nodules of calcium carbonate and fragments of light-green calcareous shale | 33 | 194 |
 |  | Sand, fine to medium; contains buff silt | 6 | 200 |
 |  | Sand, very fine to fine, and buff silt | 1 | 201 |
 |  | Silt, very calcareous, gray to buff; contains nodules of calcium carbonate and fragments of gray calcareous shale | 2 | 203 |
| Permian--Leonardian |
 | Wellington formation |
 |  | Shale, calcareous, light- to dark-gray; contains thin beds of limestone | 7 | 210 |
| 308. Sample log of test hole at the SW cor. sec. 16, T. 25 S., R. 2 W., Sedgwick County; drilled by the City of Wichita, 1938. Surface altitude, 1,391.3 feet. (Samples studied by Charles C. Williams.) | Thickness, feet | Depth, feet |
| Quaternary--Pleistocene and Recent |
 | Alluvium and McPherson formation |
 |  | Soil, sandy, brown | 2 | 2 |
 |  | Sand, fine to medium, very fine sand, and brown silt | 4 | 6 |
 |  | Sand, coarse to fine, and fine to coarse gravel; pebbles as much as ½ inch in diameter | 4 | 10 |
 |  | Gravel, fine to coarse | 4 | 14 |
 |  | Sand, coarse to medium, and fine to medium gravel | 5 | 19 |
 |  | Sand, medium to coarse; very well sorted | 1 | 20 |
 |  | Sand, coarse to medium, and fine gravel | 4 | 24 |
 |  | Gravel, fine to coarse, and coarse to medium sand | 4 | 28 |
 |  | Gravel, fine to medium; contains some coarse sand | 7 | 35 |
 |  | Silt, gray, and very fine to fine sand | 11 | 46 |
 |  | Sand, very fine to fine, and gray silt | 4 | 50 |
 |  | Silt, gray to buff, and very fine to medium sand | 10 | 60 |
 |  | Sand, medium to fine; contains some gray silt | 17 | 77 |
 |  | Silt, buff, and very fine to fine sand | 15 | 92 |
 |  | Sand, fine to medium | 12 | 104 |
 |  | Sand, very fine to medium, and buff silt | 4 | 108 |
 |  | Silt, buff, and very fine to medium sand | 8 | 116 |
 |  | Sand, medium to fine | 14 | 130 |
 |  | Sand, very fine to fine, and buff silt | 8 | 138 |
 |  | Silt, buff, and very fine to fine sand; contains fragments of plants | 6 | 144 |
 |  | Clay and silt, calcareous, light-gray | 8 | 152 |
| Permian--Leonardian |
 | Wellington formation |
 |  | Shale, calcareous, soft, light-gray, and thin beds of gray limestone | 4 | 156 |
| 312. Sample log of test hole at the NW cor. sec. 31, T. 25 S., R. 2 W., Sedgwick County; drilled by State Geological Survey, 1939. Surface altitude, 1,417.2 feet. (Samples studied by Charles C. Williams.) | Thickness, feet | Depth, feet |
| Quaternary--Pleistocene |
 | McPherson formation |
 |  | Soil, brown | 3 | 3 |
 |  | Silt, light-brown | 8 | 11 |
 |  | Silt, tan to buff; contains very fine to fine sand | 16 | 27 |
 |  | Silt, gray to buff, and very fine to fine sand | 9 | 36 |
 |  | Sand, coarse to medium, and fine gravel | 9 | 45 |
 |  | Sand, coarse to medium, and fine to coarse gravel; poorly sorted | 6 | 51 |
 |  | Gravel, fine to coarse, and coarse to medium sand | 9 | 60 |
 |  | Sand, coarse to medium; contains some fine gravel | 9 | 69 |
 |  | Sand, medium to coarse, and coarse to fine gravel | 11 | 80 |
 |  | Gravel, fine to medium, and coarse to medium sand | 5 | 85 |
 |  | Silt and clay, green-gray, and very fine to medium sand | 1 | 86 |
 |  | Gravel, fine to medium, and coarse to medium sand | 4 | 90 |
 |  | Gravel, fine to coarse; contains coarse sand | 10 | 100 |
 |  | Sand, coarse to medium, and fine to coarse gravel | 18 | 118 |
 |  | Sand, very fine to medium, and buff to gray silt | 2 | 120 |
 |  | Sand, coarse to medium, and fine to medium gravel | 7 | 127 |
 |  | Gravel, fine to coarse; contains coarse to medium sand | 3 | 130 |
 |  | Silt, gray to buff, and very fine to fine sand | 5 | 135 |
 |  | Sand, coarse to medium; and fine gravel | 10 | 145 |
 |  | Silt, tan to buff, and very fine to medium sand | 5 | 150 |
 |  | Sand, coarse to medium, and fine to medium gravel | 15 | 165 |
 |  | Gravel, medium to fine, and coarse sand | 2 | 167 |
 |  | Gravel, medium to coarse; contains some coarse sand and fine gravel | 3 | 170 |
 |  | Sand, coarse to medium, and fine to medium gravel | 5 | 175 |
 |  | Gravel, fine to medium, and coarse sand | 2 | 177 |
 |  | Sand, coarse to medium, and fine gravel | 16 | 193 |
 |  | Gravel, fine to medium; contains coarse sand | 4 | 197 |
 |  | Gravel, medium to coarse; contains some coarse sand and fine gravel | 4 | 201 |
 |  | Sand, medium to fine; contains some coarse sand and fine gravel | 5 | 206 |
 |  | Sand, coarse, and fine to medium gravel; contains a silicified specimen of Triticites and pebbles of gray limestone | 8 | 214 |
 |  | Gravel, fine, and coarse sand; contains pebbles of gray limestone | 8 | 222 |
| Permian--Leonardian |
 | Wellington formation |
 |  | Shale, light- to dark-gray | 2 | 224 |
 |  | Shale, calcareous, light-gray | 6 | 230 |