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<br />-34- <br />References <br /> <br />Collins, Bruce, 1976, Deposite of the Carbondale, Grand Hogback, and <br />Southern Danforth Hills Coal fields, Eastern Piceance Basin, <br />Colorado: Colorado School of Mines Quarterly, V. 71, no. 1, <br />January, 138 pages. <br />Collins, Bruce, 1970, Geology of the Coal-Bearing Mesaverde Formation <br />(Cretaceous), Coal Basin Area, Pitkin County, Colorado: unpub. <br />M.Sc. thesis (T-1284), Colorado School of Mines, 116 pages. <br />Cox, R.L.; Zimpfer, J.L., and Pendleton, J.A., 1983, Cumulative <br />Hydrologic Impacts Study for the North Fork of the Gunnison, Delta <br />and Gunnison Counties, Colorado: in unpub. permit document for <br />Colorado Westmoreland Coal Company, Orchard Valley Mine, Colorado <br />Mined Land Reclamation Division. <br />Dunrud, R.C., 1976, Some Engineering Factors Controlling Coal Mine <br />Subsidence in. Utah and Colorado: U.S. Geological Survey, Prof. <br />Paper 969, 39 pages. <br />Garfield Energy Corp., 1981, Sunlight Mine permit application: CMLRD <br />F11e No. C-048-B1. <br />Mid-Continent Resources, Inc., 1981, Coal Basin Mines permit <br />application: CMLRD file No. C-011-81. <br />Snowmass Coal Company, 1981, North Thompson Creek Mines permit <br />application: CMLRD File No. C-025-81. <br />,' <br />