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West Elk Mine <br />. location which includes portions of both the Dry Fork and Sylvester Gulch drainages and <br />West Flatiron. Both sites contain gentle as well as very steep slopes including areas <br />susceptible to rockfalls and landslides. <br />• Expected subsidence characteristics of the two areas, based on lithology and topography, <br />do not vary significantly according to Mssrs. Rold and Dunrud, with the exception of the <br />more extreme ranges of overburden cover in the Apache Rocks and Box Canyon mining <br />areas. Overburden thickness 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 azea is applicable to the Box Canyon pernut revision area. <br />Where differences occur, discussion of the resulting effects have been provided. <br />Inventorv of Structures and Renewable Resource Lands -2.05.6 (6)(a)(i & ii) <br />In 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 water <br />resources are presented later in Section 2.05.6(3). These water resources aze shown on Map 37. <br />MCC's hydrology monitoring stations and the many trails and unimproved U.S. Forest Service <br />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 aze anintermittently-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, bam and shed, aze located in Lone Pine Gulch. Several <br />similaz abandoned structures exist on Jumbo Mountain lease tract (see Exhibit l0A and Exhibit <br />lOB). Other abandoned structures in the permit azea, aze described in the Cultural Resources <br />Reports in Exhibit 10, Exhibit 10A, Exhibit l OB, and Exhibit IOC. No impact to these "structures" <br />from subsidence is projected. <br />Based on field evaluation of the West Flatiron lease area, there aze no structures or renewable <br />resource lands within the boundary. Known springs and renewable resource lands in the Raven <br />Gulch drainage aze not within the affected area associated with mining of the West Flatiron lease <br />tract. The only notable man-made structure potentially influenced by mining activities within the <br />least tract is Highway 133. The potential impact to this structuie is indirect by reactivation of <br />known landslides south of the highway and north of Longwall Panel 18A. Impacts from, and <br />monitoring of, this potential reactivation are addressed under the worst possible consequences <br />discussion associated with mine-induced subsidence under (Landslides) below. <br />C~ <br />2.05-lOI RevisedJun.l995 PR06; IN6 RN03; Revised MayI999 TR89; Revised Jan. 1998 PR08;March 2005 PRIf A67 <br />M~ <br />