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WYOMING FUEL COMPANY <br />DRILL HOLE LOG <br />Hole No. WELL 1 Hole Location TSN. R78W Sec. 11 1490 FNL. 860 FWL <br />Srface E1. 8192 Property Sigma Mine Extension <br />Date Spudded 12-5-79 Date Completed- 12-8=79 T•D• 600 <br />Drilling Contractor Teton Exploration Drilling Co. <br />Logging Contractor Not Logged <br />T.D. (Logl_ --- _ Hole Size __ 7" Geologist M.J. Minkel <br />Comments Drilled for installation of PVC pipe for water quality <br />monitoring station. <br />Description by Willard Owens Associates. _ <br />• <br /> <br />INTERVAL DESCRIPTION <br />0'-10' Clay soil, golden brown, with large quartz grains <br />10'-70' Shale, gray to dk. gray, thinly laminated, some <br /> carbonaceous material in last 10' cla binder <br />70'-75' Coal, gray-black with interbedded thinly laminated shale. <br /> cla binder _ <br />75'-100' Shale ray-black carbonaceous, with some thin coal <br /> strin ers cla binder <br />100'-105' Shale, gray-black carbonaceous some mica on Darting __ <br /> lanes, cla binder <br />105'-120' Shale, gray, carbonaceous, clay binder <br />120'-125' Shale, black~ray coals, very friable, clay binder _____. <br />125'-135' Shale, ray, carbonaceous slightly silty, clay binder _ <br />135'-140' Shale, gray, muddy, some_sandstone stringers, clay binder <br />140'-145' Shale, ra mudd carbonaceous some flecks of biotite. _ <br /> calcareous binder <br />.95'-160' Siltstone, gray to ra -white ver fine rained to silt <br /> quartzose, micaceous, carbonaceous, with very thin stringer: <br /> <br />Continued or. Page 2 <br />