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<br />t <br />Depth <br />(Feet) <br />0 <br />3_8 <br />10.0 <br />3D.0 <br />38.4 <br />45.5 <br />48.0 <br />51.9 <br />53_9 <br />56.0 <br />• 56.5 <br />58.5 <br />59.2 <br />62.0 <br />64.9 <br />66.5 <br />67.1 <br />67.9 <br />68.0 <br />68.9 <br />69.0 <br />72.5 <br />75.0 <br /> <br />Drill Hole ,',256B <br />Nucla Fline, Montrose County, Colorado <br />Date Drilled: .7/13/72 <br />Thickness <br />Strata (Feet) <br />Clay - damp 3.8 <br />Sandstone - hard 6.2 <br />Shale - damp 20.0 <br />Sandstone - hard 8.4 <br />Shale 8.1 <br />Sandstone - hard 1.5 <br />Shale - hard 3.9 <br />Sandstone - hard 2.0 <br />Shale 2.1 <br />Slate 0,5 <br />Coal nl (O. Dakota) 2.0 <br />Shale 0.7 <br />Sandstone 2.8 <br />Shale 2.9 <br />Ccaal ~ - 1.7 <br />Shale 0.5 <br />Coal 0.8 <br />Shale P.2 (L. Dakota) 0.1 <br />Coal 0.9 <br />Shale 0.1 <br />Coal 3.5 <br />Shale an3 sandstone 2.5 <br />'iCISAL DEPTEI <br />• 6-7-72 <br />REVISED MARCH 2006 Attachment 2.04.6-1-13 <br />