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West Elk Mine <br />.~ Both areas contain similar topographic features. The Apache Rocks and Box Canyon <br />mining areas contain a much more extreme range of topographic relief, mostly due to <br />their location which includes portions of both the Dry Fork and Sylvester Gulch <br />drainages and West Flatiron. Both sites contain gentle as well as very steeg slopes <br />including areas susceptible to rockfalls and landslides. <br />• Expected subsidence chazacteristics of the two areas, based on lithology and topography, <br />do not vary significantly according to Mssrs. Rold and Dunrud, with the exception of <br />the more extreme ranges of overburden cover in the Apache Rocks and Box Canyon <br />training aeeas. Overburdenthickness impacts will be discussed later in this section. <br />Based upon these similarities, much of the information contained within the documents pertaining <br />to the Apache Rocks permit revision area is applicable to the Box Canyon permit revision azea. <br />Where differences occur, discussion of the resulting effects have been provided. <br />Inventor Structures and Renewable Resource Lands -2.05.6 (6)(a)(i & ii) <br />Itt order to ascertain the impacts that subsidence will cause on structures and renewable resource <br />lands, an inventory of these features was conducted. Projected impacts to surface and ground <br />water resources aze presented later in Section 2.05.6(3). These water resources aze shown on <br />Map 37. MCC's hydrology monitoring stations and the many trails and unimproved U.S. Forest <br />Service roads utilized to access these sites aze shown on Map 34. <br />Man-made surface structures (i.e. buildings) exist on the coal lease area (see Map 67). The only <br />active structures.are an intermittently-used cattle camp on the Dry Fork of Minnesota Creek and a <br />wood-framed building on a concrete slab completed by the landowner in October 1994, and a <br />smaller wood-framed building and livestock enclosure constructed in November, 1995. A <br />deteriorated and fallen cabin exists in Sylvester Gulch, and the remnants of soil and stone <br />foundations of two buildings exist on a small bench overlooking the mine portal. The remains of <br />three log structures, possibly a cabin, barn and shed, are located in Lone Pine Gulch. Several <br />similar abandoned structures exist on Jumbo Mountain lease tract (see Exhibit l0A and Exhibit <br />lOB). Other abandoned structures in the permit area, aze described in the Cultural Resources <br />Reports in Exhibit 10, Exhibit 10A, Exhibit lOB, and Exhibit IOC. No impact to these <br />"structures" from subsidence is projected. <br /> <br />Z.t)5-1 ~ 1 RevisedJim. 1995 PR06: 7/96 RN03; Revised May 1999 TR89; Revh'edJarz 1998 PR08 <br />