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0 <br /> <br />List of References <br />1. Colorado Mined Land Reclamation Board, "Regulations of the <br />Colorado Mined Land Reclamation Board for Coal Mining", August 30, <br />1980, revised June 30, 1991. <br />2. Bureau of Reclamation, U. S. Department of the Interior, Design of <br />Small Dams, Third Edition, 1987, <br />3. Hoek and Bray, Rock Slope Enpineerinq, Revised Second Edition,1977. <br />4. State of Colorado, Office of the State Engineer, Division of Water <br />Resources, "Rules and Regulations for Dam Safety and Dam <br />Construction", September 30, 1988. <br /> <br /> <br />COLOWYO COAL CO.LP. <br />CTL/T 27,095 <br />6 <br />