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Proposed seismic line 9902 crosses southwest to northeast through the south end of the <br />site. Because the site had been recommended previously as eligible and in order to expedite the <br />permitting of the project, a deviation of the seismic line was surveyed around the site to avoid its <br />being impacted. The deviation passes through the old core hole location approximately 85 feet <br />north of the site and continues northeasterly down a ridge finger before turning to the southeast, <br />crossing the drainage, and tying back in with the original seismic line alignment. With the <br />deviation aligned in this manner, the site would not have been impacted by the proposed seismic <br />activity. A buffer of 85 feet and burial of the charge 20 feet below the surface into sandstone <br />bedrock would have sufficiently protected the site from impacts due to the seismic activity. <br />Augering of shot holes would have been restricted to the flagged centerline, and driving as well <br />as other seismic activities would have been restricted to a 50 foot wide corridor on either side of <br />the centerline. However, the site has been re-evaluated to be not eligible and use of the re-route <br />is not required. <br />SRT512: This site was originally recorded in 1986 by Grand River Institute during inventory of a <br />staging area for the Hayden-Gore Pass Transmission Line. At that time it was recorded as an <br />isolated find consisting of two flakes and a possible bison bone. A subsequent investigation by <br />Foothills Engineering in 1995 during inventory of several access roads in Twentymile Pazk found <br />several more artifacts in the road bed and in areas immediately north of it. These artifacts <br />consisted of approximately forty flakes, two flaked tools, which included one retouched and one <br />utilized flake, and a projectile point tip. The isolated find was rerecorded as a site in the roadbed <br />and left unevaluated for National Register eligibility. <br />During the current investigation, a stain was noted in the existing bladed road and several <br />artifacts were noted on the slopes below it to the south while inventorying a deviation of seismic <br />line 9903. All of the cultural materials observed during previous investigations and those <br />observed during the current investigation are associated with the same terrace deposits. <br />Therefore, the boundaries of the site were extended to include the artifacts observed during the <br />current project as well as those noted during the previous investigation by Foothills Engineering. <br />As currently delineated, the site is bounded on the east by a seasonal drainage which separates it <br />from adjacent site SRT1370. Its eastern and northern boundaries are defined by the extent of the <br />surface artifacts as observed during the previous investigation by Foothills Engineering. Its <br />southern boundary is unknown but is inferred based on the apparent extent of the terrace <br />deposits. Artifacts observed during the current investigation consisted of flakes which all <br />appeared to be eroding from subsurface contexts. At its closest point, the site boundary is <br />approximately 50 feet from the seismic line deviation centerline. <br />The site remains unevaluated with respect to National Register eligibility. The site <br />appears to be shallowly buried within the alluvial terrace deposits but its exact extent and degree <br />of integrity are unknown. Due to the heavy vegetation cover, the boundaries of the site are <br />somewhat speculative especially on its south end. The surface of the site has been impacted by <br />cattle grazing and road construction in addition to erosion and rodent burrowing activity. <br />