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U.S. GEOLOGICAL SURVEY <br />` DRILL-HOLE LOG, JACKSON COUNTY, COLORADO <br />Hole No.__ C27 (continued) <br />LITHOLOGY a GEOPHYSICAL LOGS <br /> F <br />y <br />G SP RES DEN <br /> ~ ~ <br />300-308 - A <br />b - <br />~ - <br />s a <br />ove _ _ _ <br />308-311 - Mudstone, brownish-gray with - <br />,~r <br />- <br />coaly matter _ <br />„ <br />311-320 - Sandstone, very light gray, <br />coarse-grained to very coarse <br />grained, subangular, poorly <br />consolidated <br />DEPTH <br />FT M <br />100 <br />350 <br />110 <br />120 <br />400 <br />130 <br />450 <br />140 <br />150 <br />500 <br />160 <br />550 <br />170 <br />180 <br />600 <br />190 <br />650 200 <br />210 <br />700 <br />75 <br />