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• <br />SENECA MINE <br />LOG OF BOREHOLE <br />Bore Hole: M-I (GW-S42) <br />Project: 0260 <br />Date Drilled: 7-28 thru 8-2 <br />Land Title: Grassy Creek <br />Location: NE, SE Section I I, TSN, R87W, Routt County, Colorado <br />Driller: J. Arguello <br />TOTAL STRATA <br />THICKNESS <br /> Surface 0.8 <br />0.8 Clay 1.7 <br />2.5 Shale, brown 21.2 <br />23.7 Shale, gray 50.3 <br />74.0 Sandstone (Lost) 0.9 <br />74.9 Shale, gray 4.6 <br />79.5 Sandstone 0.5 <br />80.0 Shale, gray 10.2 <br />• 90.2 <br />110.8 Shale, gray, with sandstone streaks <br />Sandstone 20.6 <br />I.0 <br />111.8 Shale, gray, with sandstone streaks 0.9 <br />112.7 Sandstone 5.0 <br />117.7 Coal 4.3 <br />122.0 Shale, gray 1.5 <br />123.5 Sandstone 12.5 <br />136.0 Sandstone, with shale streaks 17.7 <br />153.7 Sandstone 1.8 <br />155.5 Shale, gray 2.7 <br />158.2 Silt 1.6 <br />159.8 Sandstone 10.2 <br />170.0 Sandstone with shale streaks (.7 <br />171.7 Shale with sandstone streaks 2.2 <br />173.9 Shale, dark gray 0.3 <br />174.2 Coal 9.9 <br />184.1 Shale, dark 0.3 <br />186.9 Sandstone 1.5 <br />187.4 Shale, gray, with sandstone streaks 3.0 <br />190.4 Sandstone 3.6 <br />194.0 TOTAL DEPTH <br />• <br />6-37j <br />NOY 2 3 1981 <br />