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Drill Hole #5390 <br />• Nucla Mine, Montrose County, Colorado <br /> Date Drilled: 1/8/77 <br />Depth Thickness <br />(Feet) Strata (Feet) <br />0 Hard rack 3.0 <br />3.0 Dark gray shale 1.9 <br />4.9 Dark gray shale and shut 0.9 <br />5.8 Smut #1 (U. Dakota) 2.0 <br />7.8 Dark shale 1.2 <br />9.0 Shale and sandstone 2.0 <br />11.0 Sandstone 2.6 <br />13.6 Gray shale 3.6 <br />17.2 Soft coal 0.7 <br />17.9 Shale 0.5 <br />18.4 Soft coal #2 (L. Dakota) 2.0 <br />20.4 Medium call 3.0 <br />• 23.4 Dark shale with coal 0.3 <br />23.7 Shale 0.3 <br />24.0 TdfAL DEPTH <br />• <br />6-1-30 <br />