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January 18, 2008 <br />Mr. James R. Stark <br />Environmental Protection Specialist <br />Colorado Division of Minerals and Geology <br />Department of Natural Resources <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />RECE/ V <br />JAN EFD <br />2 2 2008 <br />Division of <br />Mining and <br />Safety <br />RE: Technical Revision No. 69, South Taylor Mine Plan Update, Colowyo Coal Mine, Permit No. <br />C-81-019. <br />Dear Mr. Stark, <br />Enclosed please find two copies of materials provided for Technical Revision No. 69. This change updates <br />Map 23A - Mine Plan and Map 28B - Topsoil Handling to reflect Colowyo's revised sequence of mining in <br />the South Taylor Pit. A revised bond will not be submitted with this change as the total affected area has not <br />been changed. This revision updates the mining sequence blocks and topsoil stripping due to new pit <br />configurations related to coal quality and shipping requirements for Colowyo. Also included with the <br />revision package are an index sheet and one replacement page which inventories the topsoil volumes within <br />the South Taylor Mine area. <br />If you have any questions or just require additional information, please feel free to contact me at (970) 824- <br />1532. <br />Sincerely, <br />Tony Tennyson <br />Environmental Engineer <br />Encl. 2 copies <br />Cc: file CF 1.1.2.58 <br />?4