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Subsidence Evaluation for the <br /> Exhibit 60E Southern Panels, Apache Rocks West, & Sunset Trail Mining Areas Page 44 <br /> 16.0 REFERENCES <br /> Agapito Associates, Inc., 2005. "Dry Fork Federal Coal Lease by Application Subsidence <br /> Evaluation"U.S. Forest Service—Gunnison National Forest. <br /> Bureau of Land Management, et al. 2002. Final Environmental Impact Statement: Iron Point <br /> Coal Lease Tract, Elk Creek Coal Lease Tract, Iron Point Coal Exploration License. U.S. <br /> Department of the Interior— Bureau of Land Management, Colorado State Office. p. K- <br /> 12, K-13, K-19. <br /> DeGraff, J. V. and C. H. Romesburg. 1981. "Subsidence Crack Closure; Rate, Magnitude, and <br /> Sequence." International Association of Engineering Geology Bulletin 23. <br /> Dunrud, C.R. 1989. Geologic Map and Coal Stratigraphic Framework of the Paonia Area,Delta <br /> and Gunnison Counties, Colorado. Coal Investigations Map C-11 S. <br /> Dunrud, C. R. 1976. Some Engineering Geologic Factors Controlling Coal Mine Subsidence in <br /> Utah and Colorado. U.S. Geological Survey Professional Paper 969. <br /> Dunrud, C. R. 1987. Subsidence-An Important Aspect of Land Use Planning Above Abandoned <br /> Underground Coal Mines. Association of Engineering Geologists Symposium Series,No. <br /> 4. <br /> Dunrud, C. R. 2004a. "Subsidence and Geologic Field Observations, Apache Rocks and Box <br /> Canyon Mining Areas, July 12-15, 2004". Wright Water Engineers, Inc. <br /> Dunrud, C. R. 2004b. "Subsidence and Geologic Field Observations, South of Divide Mining <br /> Area, July 12-15, 2004". Wright Water Engineers, Inc. <br /> Dunrud, C. R. and F. W. Osterwald. 1980. Effects of Coal Mine Subsidence in the Sheridan, <br /> Wyoming-Area. U.S. Geological Survey Professional Paper 1164. <br /> Gentry, D. W. and J. F. Abel, Jr., 1978. "Surface Response to Longwall Coal Mining in <br /> Mountainous Terrain." Association of Engineering Geologists Bulletin Volume 15, No. 2. <br /> HydroGeo, Inc. 2012. "Mountain Coal Company, LLC West Elk Mine Sunset Trail Lease <br /> Modifications 2011 Hydrology Survey". <br /> Liu, T. Q. 1981. Surface Movements Overburden Failure and its Application. Co, China: Coal <br /> Industry Publishing. (in Chinese). <br /> National Coal Board. 1975. Subsidence Engineers' Handbook. National Coal Board, United <br /> Kingdom, Mining Department. <br /> Peng, Syd S. 1992. Surface Subsidence Engineering. Society for Mining, Metallurgy, and <br /> Exploration, Inc. <br /> 831-032.912 Wright Water Engineers, Inc. <br /> December 2020 <br />