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-. <br />BIBLIOGRAPHY <br />1. Boreck, D.L., and Murray, D.K., 1979, Colorado Coal Reserves Depletion Data and Coal Mine Summaries, Colorado <br />Geological Survey Open-File Report 79-1, 665 pp. Appendix and Plate. <br />2. Colorado Division of Mines, 1983, Coal mine records of Colorado and individual mine maps: C.D.M., unpublished <br />file information. <br />3. Division of Mined Land Reclamation, Colorado Dept. of Natural Resources, 1983, Status reports--Colorado Inactive <br />Mine Program, Reclamation Pro,~ects: M.L.R., unpublished file information. <br />4. Lee, W.T., 1912, Coal Fields of Grand Mesa and the West Elk Mountains, Colorado: U.S. Geological Survey Bulletin <br />510, 237 pp., illus. <br />2l _ <br />