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Page 2 Preliminary Adequacy - Sno~,miass Coal April 29, 1981 Cultural and Historic Resources The following information must be supplied to MLR-OSM to verify compliance with Federal and State requirements: 1. Submit a report detailing the survey and testing work performed by Powers Elevation in 1979 and 1980. Any located cultural resources should be evaluated for significance using National Register Criteria (36 CFR 60.6). Impacts to sites should be discussed. The report should substantially conform to OSM's draft "Standards for Reporting Cultural Resources Invesiigations". 2. Submit a map showing areas surveyed, life-of-mine boundaries and all known cultural resources. This map should include any known historic sites located within the life-of-mine. 3. Submit the historical research report by Athearn (1977). It appears that some of the historical resources noted by Athearn are located in the lease area (Map Al-l, Vol. 2, W. Central Coal Final Environmental Statement, Bureau of Land Management), although the text states that they are not on project area lands. If they are within the lease area, either private or Federal, significance and impacts should be assessed for these sites as well as for other known cultural resources within the life-of-mine. 4. An intensive survey for cultural resources must be perforemd in any areas within the life-of-mine that may be subjected to direct surface disturbance. Although the mine plan states that there will be no additional areas disturbed, Map D-080 shows two areas of proposed disturbance. Rt a minimum, these areas must be surveyed, as well as any other areas that may be directly impacted. A report must be submitted documenting these investigations. 5. R sample survey for cultural resources that may be impacted by the effects of subsidence must be performed in the life-of-mine area. This survey should concentrate on locating cultural resources that may be especially sensitive to subsidence, such as rock art, rock shelters, and standing wall structures. The survey should be designed to examine areas that are most likely to contain such sites, and that have a good probability of showing surface effects of subsidence. The area surveyed should not be less than IOo of the life-of-mine area. A report documenting this survey shall be submitted in accordance with OSM's draft "Standards for Reporting Cultural Resources Investigations." The above deficiencies will need correction before the mine plan is considered complete, and OSM can begin consultation with the State Historic Preservation Office (SHPO) pursuant to Section 106 of the National Historic Preservation Act of 1466 and 36 CFR 800. Item 5, however, can be completed after approval of the mine plan.