2010-12-17_REVISION - C1981019 (132)

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Class IIIInventory, Colowyo's Collom Mine Project 145 • 6.1.35 Site 5MF6093 (NF -9) Site Tyne Prehistoric open camp /historic artifact Legal Location Section 13, T4N, R94W Landowner Private Site Dimensions 97 x 41 m Site Description Site 5MF6093 is a large but sparse multicomponent site located on a terrace on the west side of and above Collom Gulch at 6,640 ft (2,024 m) (Figure 6.79). The terrace is at the mouth of Collom Gulch. It is shielded to the west by the sloping north end of a broad ridge and by a hogback across the gulch to the east (Figure 6.80). The mouth of the gulch opens onto Axial Basin to the northeast. On -site sediment consists of silty clay with a large volume of gravel and eroding sandstone detritus. The vegetation community consists of dense big sagebrush in the east half of the site along the terrace margin. Other plants include various low grasses and forbs and prickly pear cactus. The site has been impacted by construction of an improved road through the western part of the site, erosion, and livestock trampling. The prehistoric component consists of a sparse open camp. Associated artifacts consist of one preform fragment, two flake tools, 10 flakes, one mano, and one heat - altered rock fragment. The preform fragment consists of the proximal portion that measures 1.8P x 1.9P x 0.5 cm and is made of opaque chest. Both flake tools are utilized retouched flakes. The first flake tool consists of the distal portion of a semitranslucent chert secondary flake that measures 33P x 3.1 x 0.7 cm. The distal and lateral margins exhibit steep retouched and utilized edge angles. The second flake tool is the distal portion of an opaque chert tertiary flake that measures UP x 2.8 x 0.9 cm. The distal and lateral margins exhibit steep retouch and utilization. The debitage assemblage consists of 10 flakes, five of which are tertiary flakes. The remainder consists of three pieces of shatter, one primary flake, and one secondary flake. Opaque chert is the dominant material type with six flakes (three tertiary, one secondary, one primary, and three pieces 47599 TRC Mariah Associates Inc.