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MOUNTAIN (OAS <br />~~~ 1(OMPANYL.L.c. <br />A Subsidiary of fvch Western Resowces, LLC <br />July 23, 2007 <br />Mr. Tom Kaldenbach <br />Division of Minerals and Geology <br />Office of Mined Land Reclamation <br />1313 Sherman Street, Room 215 <br />Denver, Colorado 80203 <br />REGEtVED <br />JUL 2 4lW 1 <br />Mining and Safety <br />West Elk Mine <br />POBOx 591 <br />5174 Hi~hH ay 133 <br />Somerset, CO 81434 <br />(970) 929-5015 <br />Fax (970) 929-Si9i <br />Re: Mountain Coal Company L.L.C., West Elk Mine, Permit No. C-80-007, 2007 Spring <br />Subsidence Report. <br />Dear Tom: <br />With this letter Mountain Coal Company is submitting three copies of the 2007 Spring Subsidence <br />Report. The report addresses the information requested in the format approved by the Division as a <br />result of Permit Revision No. 10. The report includes a discussion of the installed survey grid for E <br />Seam, mining advance, subsidence results, and visual effects. Tables show the northings, eastings, pre- <br />mining elevations, survey elevations of the current survey of the grid. <br />If you have any questions please contact me at 970 929-2238. <br />si ~ ~.G~~~at~ <br />eery azbe , <br />Environmental Engineer <br />Enclosures: 3 each, Spring 2007 Subsidence and Geolo¢ic Field Observations, Box Can o~pache <br />Rocks, and South of Divide Mining Areas, July 2007, (Wright Water Engineers Inc.) <br />Copies: W. Koontz <br />D. Nolte <br />Ryan ZTaylor - USFS <br />