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Cultural Resource Re-Visitation Form <br /> <br />Resource Number: 5MF.1652 Temporary Resource Number: <br /> <br />Page 2 of 3 <br />conduct regular revisits to assess the effectiveness of avoidance measures. <br /> Comments: <br />15. Recorder’s Management Recommendations: The site should continue to be avoided by any proposed mining <br />related activities. <br />16. Known Collections, Reports, or Interviews: <br /> <br />Karpinski, Mark and Jonathan Dugmore <br /> 2015 Cultural Resource Site Assessments for Western Fuels-Colorado, Colowyo Coal <br />Company’s Collom Expansion Project, Moffat County, Colorado. Tetra Tech. Submitted <br />to Colorado Office of Archaeology and Historic Preservation. Copies available through <br />Colorado Office of Archaeology and Historic Preservation. <br /> <br />Karpinski, Elizabeth, Cody Haisley, and Mark Karpinski <br /> 2019 Cultural Resource Site Assessments for Western Fuels-Colorado, Colowyo Coal Company’s Collom Expansion <br />Project, Moffat County, Colorado. Tetra Tech. Submitted to Colorado Office of Archaeology and Historic Preservation. <br />Copies available through Colorado Office of Archaeology and Historic Preservation. <br /> <br />Lowe, James A., Bruce R. McClelland, Mark Karpinski, and Elizabeth Karpinski <br />2006 A Class III Cultural Resource Inventory for Colowyo Coal Company’s Collom Mine Project, Moffat and Rio <br />Blanco Counties, Colorado. TRC Mariah Associates. Submitted to Bureau of Land Management, Little Snake River <br />Field Office. Copies available through Colorado Office of Archaeology and Historic Preservation. <br />17. Site Description/Update: Site 5MF.1652 was originally recorded in 1983 by Mariah Associates for the Danforth <br />Hills Utah International project. The site was recorded as a prehistoric camp and broad lithic scatter. Since the original <br />recording, the site has been revisited twice. It was revisited in 2005 by TRC for the Collom Mine Expansion Class III <br />Inventory project and in 2015 by Tetra Tech for the Collom Mine Expansion Site Assessment project. During both <br />revisits, the site was found to be in the same condition as reported in 1983 despite noted impacts from the construction <br />of County Road 51, an overhead power line, and collection of artifacts. Two features were observed, a light charcoal <br />stain with heat-altered rock (HAR) and a second charcoal stain with no HAR. The artifact assemblage consisted of one <br />tan side-notched projectile point of tan oolitic chert, two chert and two quartzite bifaces, two scrapers, two utilized <br />flakes, and over 100+ white chert lithic flakes. Tetra Tech did record a new site boundary as the current polygon <br />appeared to be off. The new boundary documented in 2015 measured 185 m by 94 m. <br /> <br />IIn 2019, Tetra Tech revisited the site as part of the second round of assessments. The site had not been adversely <br />affected by mining activities; however, a thin layer of aeolian sandy silt was observed across the entire site. The layer <br />was likely from dust kicked up by continued regular use of the adjacent County Road 51 with a briefer period of <br />deposition caused by construction activities for the Collom haul road in 2017 and 2018. The additional sedimentary <br />deposits were not considered impacts to the site or its potential NRHP eligibility. The original site datum was relocated, <br />and a new GPS point was taken. None of the originally identified tools were relocated, and the observed artifact <br />assemblage consisted of approximately 40 white chert flakes. The HAR that made up Feature 1 was relocated, <br />however, the previously noted staining was partially covered by the new aeolian sediments. Features 2 and 3 were not <br />relocated. The two features were likely reburied by new aeolian sediments. <br /> <br />In 2023, Tetra Tech revisited the site as part of the third round of assessments. The site has not been adversely <br />affected by mining activities. The 2023 revisit observed approximately 20 white chert flakes and one fire-cracked rock <br />(FCR) fragment. None of the features were observed as a thin layer of aeolian sandy silt has been deposited across <br />the site. The layer was observed in 2019 obscuring Features 2 and 3. Feature 1 is now also not visible. The added <br />sediments since 2019 are from continued regular use of the adjacent County Road 51 and natural processes moving <br />deposits formed from the construction activities for the Collom haul road in 2017 and 2018. The additional sedimentary <br />deposits are not considered impacts to the site or its potential NRHP eligibility. Tetra Tech recommends that mining <br />activities continue to avoid the site until further assessment is completed to fully evaluated the site’s NRHP eligibility. <br />18. Photograph Numbers: 117-8108007:103-0278 <br /> Digital files at: Tetra Tech, Salt Lake City