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Drill Bole #GW-PI4 <br />• Nucla Mine, Montrose CoLmty, Colorado <br /> Date Drilled: 3/24/77 <br />Depth Thiclmess <br />(Feet) Strata (Feet) <br />0 ffiaan clay - damp 4.1 <br />4.1 ffiown sand rock 1.1 <br />5.5 Brown clay and sandstone 1.1 <br />6.6 Sandstone -damp 2.5 <br />9.1 Dame gray shale 2.5 <br />11.6 Gray sandstone 14.1 <br />25.7 Dark shale 1.3 <br />27.0 Gray shale 7.6 <br />34.6 Dark shale - wet 1.0 <br />35.6 Coal - water #1 (U. Dakota ?) 2.0 <br />37.6 Dark shale - coal? 4.2 <br />41.8 Gray shale 1.0 <br />. 42.8 Shale and sandstone 1.2 <br />44.0 TO'II~L DEPTH <br />• <br />6-1-45 <br />