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142 Class III Inventory, Colowyo's Collom Mine Project <br />Site Description Site 5MF6092 is a small prehistoric lithic scatter located on the upper portion of <br />the north end of a northeast- trending ridge between Collom Gulch to the west and Jubb Creek <br />to the east (Figure 6.77). It is situated at 6,920 ft (2,109 m) near the head of an unnamed <br />northwest - trending drainage. Exposures of sandstone bedrock are common in the general area and <br />within the site proper (Figure 6.78). On -site sediment consists of residual. silty clay with gravel and <br />eroding bedrock detritus. The sparse vegetation community consists of scattered juniper, sagebrush, <br />and low bunchgrasses. Impacts to the site include erosion, and vehicle traffic along a two -track road <br />that passes through the north - central part of the site. <br />The lithic scatter consists of three bifaces, two flake tools, 35 flakes, and one mano. The bifaces <br />consist of one final biface fragment and one complete blank and one blank fragment. The final <br />biface fragment is amedial portion that measures 2.81? x 3.1 x 1.2 cm and is made of quartzite. Both <br />blanks are made of quartzite and reflect manufacturing stages. The complete specimen measures <br />13.2 x 3.7 x 1.2 cm and exhibits longitudinal thinning on the dorsal and ventral surfaces. The blank <br />fragment is a distal end that measures 5.7P x 2.5 x 1.1 cm. Both flake tools are complete utilized <br />retouched opaque chert flakes. The first flake tool measures 4.9 x 4.1 x 0.7 cm, and the second <br />specimen measures 3.7 x 3.9 x 0.6 cm. Usewear was noted on the distal and lateral margins of both <br />artifacts. The debitage assemblage consists of 35 tertiary flakes. Quartzite is the most common <br />material type with 30 flakes. The remaining five flakes are made of opaque chert. The mano is a <br />small complete sandstone cobble that measures 8.3 x 5.0 x 3.5 cm and exhibits light grinding on one <br />surface. <br />Of the artifacts described above, the final biface fragment, the blank, one flake tool, and 25 of <br />30 quartzite flakes are located in a 3 x 1 -m concentration within the northern end of the site. This <br />concentration may reflect a small activity area that is eroding downslope. <br />The site was not tested because the sediment context consists of residuum impacted by slopewash <br />and exposed bedrock. <br />• <br />47599 <br />TRC Mariah Associates Inc. <br />:F <br />