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Fall 2014 Subsidence and Geologic Field Observations <br />South of Divide and Dry Fork Mining Areas <br />Prior field observations and experience in the West Elk Mine area over the last nineteen years <br />(1996 to 2014 inclusive) indicate that subsidence features (cracks and bulges) are most visible on <br />roads and trails, where the ground is more compact and free of brush. These areas are therefore <br />targeted for observation to most efficiently obtain subsidence information. Larger subsidence <br />features like rockfalls and landslides are generally observable from roads and trails or from <br />overview locations that have been, and continue to be, established for this purpose. <br />In keeping with a reduction in report size, this Fall 2014 Report focuses on the identification and <br />discussion of those observations that reflect an obvious change in the observed conditions <br />overlying the mine and on documenting baseline conditions in areas that have yet to be mined. <br />Observations from our fall 2014 field visit were focused solely on the South of Divide (SOD) and <br />Dry Fork mining areas. These areas involve mining of the underlying E -Seam using the longwall <br />mining process. <br />This report does not include a conclusions section. All conclusions associated with subsidence <br />observations will continue to be provided in the spring report. <br />'Annual subsidence and geologic hazard reports are kept at Mountain Coal Company, LLC, and at the Colorado <br />Division of Reclamation, Mining, and Safety, as well as exhibits to the permit document (Exhibits 60, 60A, 6013, <br />60C, 60D, and 60E). <br />831 - 032.796 Wright Water Engineers, Inc. Page 4 <br />March 2015 <br />