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West Elk Mine wood-framed building on a concrete slab completed by the landowner in October 1994 and a smaller wood-framed building and livestock enclosure constructed in November, 1995. A deteriorated and collapsed cabin exists in Sylvester Gulch, and the remnants of soil and stone foundations of two buildings exist on a small bench overlooking the mine portal. T'he remains of three log structures, possibly a cabin, bam and shed, are located in Lone Pine Gulch. Several similaz abandoned structures exist on the Jumbo Mountain lease tract (see Exhibit l0A and Exhibit lOB). Other abandoned structures in the pemut azea, are described in the Cultural Resources Reports in Exhibits 10, 10A, IOB, lOC, IOD, and 10E. No subsidence-related impacts to these "structures" is projected or anticipated. Description of Possible Subsidence Consequences - 2.05.6(6)(b)(Z Pre- and Post-mining Land Uses -2.05.6 (6)(b)(i)(A) As indicated in the Mountain Coal Company Coal Methane Drainage Project EA (February 2002), North Fork Coal EIS (2000), and Environmental Analysis U-94-37 (November 1994), prepazed by the U.S. Forest Service (USFS) and U.S. Bureau of Land Management (BLM), in cooperation with the U.S. Office of Surface Mining (OSM) and other jurisdictional agencies, the permit area lands support wildlife use, dispersed recreation, and livestock grazing. The Forest Service Amended Land Resource Management Plan prescribed land use designations of the Box Canyon lease tract, South of Divide permit revision area, and surrounding USFS lands as "SA" and "6B; ' which emphasize wildlife habitat and livestock grazing, respectively, and may provide recreational opportunities for semi-primitive non- motorized, semi-primitive motorized and roaded natural settings. The area is generally open to off-road motorized use, as identified on the "Gunnison Area Basin" National Forest map. It is anticipated that little or no impacts to wildlife and domestic livestock uses, and their respective habitat will occur as a consequence of mining-induced subsidence on the permit azea. In the unlikely event that subsidence effects adversely impact wildlife or domestic livestock uses associated mitigation measures will focus on returned disturbed areas to a capability and land use(s) which existed prior to mining. These mitigation measures may include, but not be limited to, repairs of surface cracks that are deemed dangerous to human, wildlife, or livestock. The repairs of the cracks may include backfilling with available native soils, gravels, concrete block, etc. Stream flows will be returned to their channels if, in the unli[ely event, they are diverted by surface subsidence cracking. These repairs can include the use of bentonite or native soils to seal the fractures. Temporary culverts in ditches and streams may also be used to bridge surface cracks while the best method to seal the fractures is determined. Livestock fences damaged by mining related activities will be repaired as soon as possible. Roads will be repaired through regarding or filling if adversely affected by subsidence. Roads and approved trails will also be cleared if rocks or other debris fall across their path due to mine related subsidence. Effects ofMining on Surficial Geologic Features When evaluating the effects of mining in the permit revision area, the present land use, the post- mining land use and the effects of previous mining in the area should be considered. Present land uses primarily include wildlife habitat, recreational hunting, and livestock grazing. Post- 2.05-97 Revised June 2005 PRIG