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ABSTRACT <br />Metcalf Archaeological Consultants (MAC) conducted a Class III inventory for <br />Twentymile Coal Company's two proposed water monitoring wells, the 19 Right Longwall and 22 <br />Right Longwall, in Routt County, Colorado. The project consisted of the two monitoring wells <br />and 6.5 miles of total access. Four and 8l10ths mile of the access goes to the 22 Right Longwall <br />location and an additional 1.7mi goes to the 19 Right Longwall. All but one mile is existing dirt <br />roads that have been at least minimally bladed in the past. There are two segments of existing <br />two -track that appear to have been created via use rather than mechanical blading. Both these <br />lead to the 22 Right Longwall location. A small segment of new access will depart the existing <br />two -track and proceeds north for 600ft to the well location. A 200ft block was inventoried <br />around each of the wells, while the unbladed sections and new segment of access road were <br />surveyed to a total corridor width of 100ft. All surveyed access is associated with the 22 Right <br />Longwall. There will be a very short segment of new access for the 19 Right Longwall, but it will <br />fall within the 200ft survey block. A total of 19.5 acres were inventoried for this project, all on <br />State of Colorado lands. Two acres for the two well blocks and 17.5 acres for the surveyed access <br />roads. Only new access ro ds were surveyed for cultural resources. Additional maintained <br />dirt/gravel roads will be used for access by Twentymile; these roads were not inventoried for <br />cultural resources. <br />Inventory for this project resulted in the discovery and documentation of one new <br />prehistoric site (5RT3256) which is evaluated as "needs data ". A section of the access to the 22 <br />Right Longwall well passes through a portion of the site. This road is a two -track that has been <br />created by use; it does not appear to have ever been bladed, therefore it has caused minimal <br />damage to the site's cultural deposits. This road is currently used for ranching and mining <br />activities, and continued use should not cause any additional damage to the site. However, if any <br />ground disturbing work is necessary for access to the proposed well location then the site should be <br />tested prior to this work in order to make a final NRHP eligibility determination. <br />No fiu-ther work is recommended for the water monitoring project as long as the above <br />recommendation is followed. <br />For Official Use Only: Disclosure of Site Locations Prohibited (43 CFR §7.18) <br />