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MAC <br />Metcalf Archaeological Consultants, Inc. <br />December 16, 2015 <br />Jared Ebert <br />Environmental Protection Specialist <br />Colorado Division of Reclamation, Mining, and Safety <br />1313 Sherman St. <br />Room 215 <br />Denver, CO 80203 <br />Mark Tobias <br />Section 106 Compliance Manager <br />Office of Archaeology and Historic Preservation <br />History Colorado <br />1200 Broadway <br />Denver, Colorado 80203 <br />RE: Preliminary Report of Negative Findings for Twentymile Coal Company's Proposed <br />13L Grout Borehole and Access Road in Routt County, Colorado <br />Dear Jared and Mark, <br />Metcalf Archaeological Consultants, Inc. (Metcalf) recently conducted an intensive Class <br />III cultural resource inventory for Twentymile Coal Company's (Twentymile) proposed 13L <br />grout borehole and access road in T5N/R86W, Section 20, in Routt County, Colorado (Figure 1). <br />The inventory consists of 6.46 acres of private lands with private mineral rights. Jurisdiction, for <br />the purposes of Section 106 of the National Historic Preservation Act, is through the Colorado <br />Division of Reclamation, Mining, and Safety (CDRMS). The CDRMS receives federal funding <br />from the Office of Surface Mining, Reclamation, and Enforcement (US Department of the <br />Interior). The Colorado State Historic Preservation Office (SHPO) is a consulting party for the <br />purposes of Section 106. <br />The inventory was performed in order for Twentymile to fulfill permit stipulations to <br />construct a borehole drill pad and access road. The borehole will be used to introduce grout for <br />stabilization purposes to support underground mining operations. The proposed drill pad <br />measures approximately 250 ft by 250 ft; the proposed access road, which largely follows an <br />existing two -track trail, measures approximately 2,550 ft long. <br />(970)328-6244 <br />(303)425-4507 <br />(970)434-9080 <br />(701)258-1215 <br />Fax: (970) 328-5623 <br />Fax: (303) 425-8911 <br />Fax: (970) 434-9740 <br />Fax: (701) 258-7156 <br />P.O. Box 899 <br />651 Corporate Circle, Ste 200 <br />3094 I-70 Business Loop, Ste. B <br />P.O. Box 2154 <br />Eagle, CO 81631 <br />Golden, CO 80401 <br />Grand Junction, CO 81504 <br />Bismarck, ND 58501 <br />