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for preserved buried and datable cultural material that might provide information about prehistoric <br />chronology and subsistence;in the area. MAC recommends this site as needs data. If the site will <br />be subjected to physical disturbance from mine facilities, testing and/or data recovery should occur. <br />Assessment of potential effects from subsidence will be evaluated as part of a recommended site <br />condition monitoring program for the mine. Testing or data recovery may be triggered under this <br />program if the potential for, site degradation from subsidence is observed during the monitoring <br />program. <br />5RT2738 (MM8597) <br />Site Description. This site is a newly recorded, prehistoric lithic scatter that measures <br />approximately 27 m N/S x 75 m E/W. The site is located in a narrow valley approximately 6.5 miles <br />south of the Yampa River. It is situated at the base of a small hill on the southern bank of Grassy <br />Creek about 200 m west of County Road. 27. A dirt road parallels the north bank of Grassy Creek <br />about 200 m from the northern site boundary. Rolling hills and low ridges surround the site. The <br />Williams Fork Mountains and Hillberry Mountain are visible to the west. A high, long ridge creates <br />the eastern valley wall and is visible to the east. Vegetation on-site is primarily low sagebrush, <br />prickly pear cactus and grasses. The surrounding hill tops and ridges are also vegetated by dense <br />mountain mahogany and oakbrush. Deposition is alluvial and slopewashed silts measure up to one <br />meter in depth based on exposure along the Grassy Creek cutbank. An animal trail bisects the site <br />in a general east to west direction. <br />Cultural material at the site includes one flake tool and 41 lithic flakes (two primary, five <br />secondary and 34 tertiary). The flake tool is made from gray chert and is retouched along one edge. <br />The most predominant flake materials are white chert, semi-translucent white chert and gray <br />quartzite. A small number of flakes are composed ofred and tan chert, gray siltstone and white, red, <br />and tan quartzite. No artifact concentrations or features were recorded. <br />Eligibility and Management Recommendations. This site does not retain integrity. <br />Examination of the Grassy Creek cutbanks indicates that up to 100 cm of alluvial deposition is <br />present. However, the artifact assemblage is small and no activity areas or evidence of intact <br />features were visible at the surface. In addition, no artifacts or features were found eroding from <br />the drainage bank. Based on,, examination of the Grassy Creek cutbank and of the animal trail that <br />bisects the site, it appears that this site is completely surficial. Since there is no evidence of a buried <br />cultural level exposed in the cutbank which runs the length of the northern site boundary, it is <br />unlikely that this site would yield information important to the area's prehistory. Because of this, <br />MAC recommends this site not eligible for inclusion on the NRHP. No further work is <br />recommended. <br />5RT2739 (MM8715) <br />Site Description. Site 5RT2739 is a newly recorded, prehistoric site. It is an open lithic <br />scatter that measures approximately 145 m N/S x 180 m E/W. The site is spread along a bench and <br />the south-facing slope of an upper terrace of an unnamed, intermittent drainage that flows east to <br />Fish Creek. The east flowing drainage is about 100 m south of the site. South-flowing drainages <br />bound the site on the east and west. Sandstone bedrock outcrops along the banks and the bottom <br />of the drainage to the east. ' A modern fence is located near the southwest corner of the site <br />35