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€c? OFFICE of ARCHAEOLOGY and HISTORIC PRESERVATION <br />June 12, 2009 <br />Marcia L. Talvitie <br />Environmental Protection Specialist ?UN 17 2009 <br />Division of Reclamation, Mining, & Safety .,amation, <br />Department of Natural Resources pivis`or, v and Safety <br />1313 Sherman Street, Room 215 Mining <br />Denver, CO 80203 <br />Re: Elk Creek and Sanborn Creek Mine (Permit No. C-1981-022) Technical Revision Application No. <br />63 (M-63) Ventilation Boreholes (CHS #54781) <br />Dear Ms.. Talvitie:' <br />Thank you for your email correspondence dated June 11, 2009, which follows up on correspondence <br />from our office in a letter dated May 11, 2009. <br />It appears that our office had previously concurred on the findings from the investigations you cite in <br />your correspondence - Cultural Resource Inventory Report for the Block Clearance of the Oxbow <br />LLC Project (CHS #47148). The report indicates that adequate cultural resource inventory has been <br />conducted in the area of most of the proposed ventilation boreholes at the Elk Creek and Sanborn <br />Creek Mine. As our office noted during our review of TR-63, proposed boreholes GVB-LW-15-01 <br />through 15-05 and 16-02 through 16-05 do not appear to fall within the limits of the inventory's <br />surveyed areas. However, we appreciate the clarification that these proposed sites are located on <br />steep, brush-covered slopes. <br />In light of this information, we concur that a finding of no historic properties affected is <br />appropriate for the proposed activities associated with the subject Technical Revision Application No. <br />63 (17R-63) Ventilation Boreholes. <br />Should unidentified archaeological resources be discovered during the course of the project, work must <br />be interrupted until the resources have been evaluated in terms of the National Register of Historic <br />Places eligibility criteria (36 CFR 60.4) in consultation with our office. <br />Thank you for the opportunity to comment. If we may be of further assistance, please contact Shina <br />duVall, Section 106 Compliance Manager, at (303) 866-4674 or shina.duvall a,chs.state.co.us. <br />Sincerely, <br />'6z, /? (??. <br />dward C. Nichols <br />State Historic Preservation Officer <br />ECN/SAD <br /> <br />(K I LL I ?Z ?` Y Z Zi [ 11Y Z? 1 T? I l <br />1300 BROADWAY DENVER COLORADO 80203 TEL 303/866-3395 FAx 303/866-2711 www.coloradohistory-oahp.org