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f iif ur~~ii~~i~u ~~~ .,., : ,. 899 IN REPLY REFER TD: United States Department of the Interior sloo BUREAU OF LAND MANAGEMENT 7-161 GRAND JUNCTION DISTRICT 764 HORIZON DRIVE GRAND JUNCTION, COLORADO 81501 Mr, James Herron Colorado Mined Land Reclamation Board Colorado Department of Natural Resources 1313 Sherman Street Denver, CO 80203 AuRUSer~l ,vk9&~ , ld'l1~ ~,d~~a~ AL' G 1 ? 1982 MIi1~EO (.ANO RECLAMATION Colo. Dept. of Pdatural Reso!~rce° Dear Mr. Herron: This is in regard to your telephone conversations of July 12, 1982, and August 6, 1982, with Julie Euchner concerning clarification of the cultural resource stipulations for the Powderhorn Coal Company Mine Plan Permit application. The stipulation in question, Number 1 on Page 8 of the Unsuitability Report, reads as follows: "Where underground mining is to take place, monitoring by a qualified archeologist for degree of subsidence will be done every six months. Special attention will be given to areas where known archeological resources are present. If subsidence is determined to be affecting cultural resources, the BI,M Area Manager will be notified and appropriate measures will be taken in consultation with the State Historic Preservation Officer to mitigate its effect." The intention of this stipulation is to safeguard known areas of fragile archeological resources from the potential impact of subsidence, an occurrence which is hard to predict in exact location and severity. However, comments received both from your office and that of Powderhorn Coal Co. indicate that this stipulation would be difficult to implement logistically and that it is in excess of what is needed for site protection. Therefore, Stipulation Number 1 is now changed to read: "Where underground mining is to take place, monitoring for impact to known site locations will be required in those areas where subsidence has been determined to be occurring, or where there is a possibility that it may be occurring. A11 monitoring of sites is to be carried out by a qualified archeologist. If subsidence is determined to be affecting cultural resources, the BLM Area Manager will be notified and appropriate measures will be taken in consultation with the State Historic Preservation Officer to mitigate its effect."