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1000LORADO <br /> .0 Division of Reclamation, <br /> Mining and Safety <br /> Department of Natural Resources <br /> Graham Roberts <br /> Trapper Mining Inc. <br /> P.O. Box 187 <br /> Craig, CO 81626 <br /> 2 August 2022 <br /> Re: Trapper Mine(Permit No. C1981-010) <br /> Review of Affected Area Acreage for permitting action PRll <br /> Dear Mr. Roberts: <br /> The Division has received the PR11 permitting action and reviewed the affected area acreage <br /> associated. As DRMS considers the area overlying the underground mining operations <br /> associated with the highwall/auger operation as affected area, it appears that the affected area <br /> must be increased for these areas over the entire site where highwall mining has occurred in the <br /> past, up to the present and through the PR11 Permit term. This would include areas in the <br /> following pits, and possibly other historical pits: <br /> o East of Ashmore Pit <br /> o C <br /> o F Pit <br /> o K <br /> o L <br /> o I <br /> o J <br /> DRMS notes that Trapper estimated the penetration of the highwall miner(PR1O), at <br /> approximately 1,200 ft. DRMS is aware that this depth has to date, been difficult to achieve in <br /> the N, I and J pits. Please as much as possible ascertain a reasonable average penetration depth <br /> areas to utilize in calculating the affected areas undermined around the pit outlines depicted on <br /> the M4 Map associated with PR11. <br /> I'm availalbel to answer any question or concerns that come up. <br /> Sincerely <br /> Robin Reilley,M.S. GISP <br /> Environmental Protection Specialist 11 <br /> Robin.reilleykstate.co.us <br /> Physical: 1313 Sherman Street, Room 215, Denver, CO 80203 P 303.866.3567 F 303.832.8106 �4 o1.COI0 <br /> Mailing: DRMS Room 215, 1001 E 62nd Ave, Denver, CO 80216 https://drms.colorado.gov Fe ��� <br /> Jared S. Polis, Governor I Dan Gibbs, Executive Director I Virginia Brannon, Director I * * <br /> 'f1876* <br />