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<br /> _ Drill Bole #283 <br /> Nucla Mine, Montrose County, Colorado <br /> Date Drilled: 9/18/.73 <br /> ~Pth Thickness <br /> (Feet) Strata (Feet) <br /> . 0 Surface soil 2.0 <br /> 2.0 Shale .3.3 <br /> 5.3 SancLstone 6.7 <br /> 12.0 Hax~ sandstone 1.3 <br /> 13.3 Shale & sandstone 1.5 <br /> 14.8 Dark shale 1.6 <br /> 16.4 Coal 2.9 <br /> 19.3 Dark shale wJcoal C1 (U. Dakota) 0.4 <br /> 19.7 Dark shale 0.3 <br /> 20.0 Shale 1.0 <br /> 21.0 Sandstone 3.9 <br />• 24.9 Shade - Dark shale 3.8 <br /> 28.7 Coal 0.9 <br />C 29.6 Shale 0.1 <br /> 29.7 Shale and coal ~2 (L' ) 0.3 <br /> 30.0 Coal '. 9.7 <br /> 34.7 Shale 1.1 <br />' 35.8 Saixlstone 2.2 <br /> 38.0 Shale 7.5 <br /> 45.5 Hard sandstone ~ 2.1 <br /> 97.6 Shale 9.9 <br /> 57.5 Dark shale 2.0 <br /> 59.5 Shale 3.2 <br /> 62.7 Coal 1.3 <br /> 64.0 Dark shale @3 (Nucla) 2.3 <br /> 66.3 Coal 1.4 <br /> 67.7 Shale 0.4 <br /> 68.1 Hard sandstone 0.9 <br /> 69.0 Shale sandstone 1.6 <br />~ 70.6 hard sandstone ~ 2.0 <br />( <br />L <br />• 6-1-76 <br /> REVISED MARCH 2006 Attachment 2.04.6-1-17 <br />