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Subsidence Fiotd Observations <br />Wost Elk Mine <br />Juty 22.24, 2003 <br />4.1.3 Traverse C-C' <br />Travenr C-C' begins at fork in drill roads (Point B'- and ends on top of West Flatiron at Drill <br />Hole 22.04 flap 1). <br />• ~I'ntverscd abvvc the approxtmmc midpoints of un-mined longwall Panels 24. 23, and 22. <br />f Icadgate and tailgate entries arc currently being developed eastward in longwall Panel 22. <br />• Material encountered on the traverse includes occasional outcrops of sandstone, siltstone. and <br />mudstone of the Ohio Creek Mcmher of the Mesaverde Formation, but mostly colluvium and <br />soil. <br />Bat-032.810 Wright Waler Enguroora. Inc. Page 9 <br />September 2003 <br />Figure 2. Fractured nxk m the massive Ohio Crrek <br />sandatunca that are lix:4tcd about 500 feet southwest <br />at crack m Figure 1. The arcs appears to be <br />disturbed by mining in longwall Panel 14. <br />FiKurc 1. Yunhwestward view ut n subsidence crack <br />that ruts the massive sandstones of the Ohiu Crctk <br />hlcmtxr u( the blesaverde Furmauon. 1'ht crack is <br />Icxated atwae the approximate midpoint of mined•uut <br />longwall Panel IS. <br />