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Cultural Resource Site Assessments for Collom Expansion Project Colowyo <br />generalized deterioration was observed common to all abandoned historic era habitation sites. <br />Significant changes to the site were a new stock pond and a small excavated pit; however neither <br />directly impacts the site. Modern recreation activities have led to a few aspen tree carvings and <br />sparse modern debris. Despite all the impacts, the site retains its overall integrity. <br />Figure 12. Site 5MF.4008 Overview. Facing Southwest. Taken by J. Dugmore 9/9/2015 <br />5MF.4010 — Prehistoric Lithic Scatter, Needs Data <br />Site 5MF.4010 was originally recorded in 1995 by Metcalf Archaeological Consultants for the <br />Colowyo Coal Company Lease and Exploration Areas: Class III Cultural Resource Inventory <br />project. The site consists of a prehistoric lithic scatter of approximately 35 white chert flakes along <br />a cutbank on the west side of Wilson Creek. Five to ten flakes were observed in situ in the side <br />of the cutbank and about 25 flakes were discovered in redeposited sediment directly underneath <br />the cutbank. In 2005 TRC revisited the site as part of the Collom Mine Expansion project. The in <br />situ flakes were relocated as well as the artifacts in the redeposited sediments. TRC also reports <br />an additional five flake concentrations in situ along the cutbank along with charcoal flecks and a <br />possible biface. <br />In 2015 Tetra Tech revisited the site as part of the current undertaking (Figure 13). One of the <br />white chert tertiary flake clusters was relocated on the eroded slope below the cutbank. No in situ <br />flake localities were found. The cutbank has undergone heavy erosion since 2005. Originally <br />reported flake localities are likely buried under the eroding sediment. A slump event has occurred <br />in the center of the site at the location of the original in situ flake location. The slump measures <br />approximately 5 m by 5 m. However no evidence was observed that the erosion has impacted <br />the potential for the site to retain intact subsurface cultural component(s). <br />Tetra Tach July 25. 2015 15 <br />For Official Use Only: Disclosure of Site Locations Prohibited ;43 CFR 7 18) <br />