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• This cultural resource inventory was mandated by the National Historic Preservation Act of <br />1966 because portions of the project will occur on state-owned ]and. It is also necessary to <br />facilitate the mine's ongoing compliance with the regulations of the Colorado Division of <br />Minerals and Geology. Fieldwork was conducted October 20th through the 23rd by the author <br />and assisted by Michael D. Metcalf under the stipulations of Colorado Cultural Resources permit <br />CO-2003-11 (expires 02-29-04). <br />Man~ement Summary <br />This inventory resulted in the discovery and documentation of four prehistoric isolated finds. <br />Tn addition to these, there is one previously recorded prehistoric site within the project's azea of <br />potential effect (APE). <br />The previously recorded prehistoric site (SRT] 57) had been recommended as need data by <br />previous investigators. MAC updated information for the site during a recent 2003 project, and <br />recommended that shovel testing occur prior to any surface disturbance within the eastern portion <br />of the site (McKibbin 2003). Several shovel probes and badger back dirt piles were screened <br />during the current project. No cultural material was recovered from these azeas and the site is <br />now recommended as not eligible for the National Register. <br />Cultural resource cleazance is recommended for this project since there aze no eligible cultural <br />resources within the project boundary. <br />Effective Environment <br />This project is located in and around Twentymile Park which lies to the east of the Williams <br />Fork Mountains. In general the area is a high and dissected plateau with broad flat drainages <br />valleys separated by rolling hills. The overall azea is drained via Fish Creek and Foidel Creek, <br />both tributaries of Trout Creek a north flowing tributary to the Yampa River. The Yampa is <br />approximately four miles to the north. <br />Quaternary deposition in the project azea is alluvial in nature and consists of dark brown silts <br />and sandy silts. These can be up to several meters thick in places along the drainages. <br />Subsurface geology is composed of sandstone, shale and major coal beds of the Williams Fork <br />Formation which aze sedimentary and igneous rocks from the Eazly Tertiary and Late Cretaceous <br />Age (Tweto 1979). <br />Vegetation cover in the project area ranged from approximately 50% to 100%. In the areas <br />which still contain natural vegetation and in cultivated fields, which have been recently gazed, <br />this ground cover was azound.50%. The steeper slopes and ridges varied from 80 to 100% <br />vegetation cover created by thick scrub oak. In the more level rolling fields, which have not been <br />.grazed recently, the vegetation cover rangers -from 60 to 80% and are predominantly planted <br />grasses. Much of the project area consists of improved range land where the native sagebrush <br />• <br />