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<br /> <br /> <br /> <br />U <br />Depth <br />(Feet) <br />0 <br />11.0 <br />15.2 <br />17.5 <br />18.5 <br />20.5 <br />22.9 <br />27.5 <br />30.1 <br />30.3 <br />30.7 <br />31.7 <br />32. 0 <br />36.8 <br />REVISED MARCH 2006 <br />Drill Hole ;5620 <br />Nucla Mine, Montrose County, Colorado <br />Date Drilled: 1/17/77 <br />Thickness <br />Strata (Feet) <br />Clay atxi shale 11.0 <br />Sandstone 4.2 <br />Gray shale 2.3 <br />Dark shale 1.0 <br />Soft coal gl (V. Dakota) 2.0 <br />Dark shale 1.5 <br />Hard sandstone 5.5 <br />Gray shale 2.6 <br />Coal 0.2 <br />Shale 0.4 <br />Coal ~2 (L. Dakota) 1.0 <br />Shale and coal 0.3 <br />Coal 4_8 <br />TQrAr. DEPSH <br />6-t-32 <br />Attachment 2.04.6-1-33 <br />