C L E L H E R P FOX HILLS OMIT U ERRE Sand, gray, very soft, dirty fossil leaves cross bedded lignite and brown lignitic shale Shale, medium gray Sand, medium-gray, dirty Shale, medium gray Shale, dark gray, fiss. Sand, gray, soft, streaks Shale, darkgray, benfourite streaks Sand, yellow to yellow buff, dirty Shale, medium gray, hard, blocky streaks, hard sandstone nodules Shale, dark gray, sandy COLGATE SANDSTONE Sand, gray, soft, dirty. log zone at top Dolopemides major Sand, yellow buff, streaks dark gray to dark brownish gray shale Sand, yellow buff, laminated Shale, dark gray Sand, gray to greenish gray soft dirty Yellow sulphur zone BLK BUTTE MEMBER? Shale, dull-gray, fissile Sand nodules Sh., medium-gray, sandy Shale, dark gray Shale, medium gray, streaks sand Shale, medium gray, hard, blocky Shale, dark gray. Micaceous Virgin Creek MEMBER?