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10 <br />• Of the three prehistoric sites that aze not strictly cultural material scatters, two aze <br />structural and assumed to be aboriginal (SLA6982 and SLA6983). The third is a primary lithic <br />material source (SLA6981). The structural sites include a single two-room dry-laid masonry <br />room block with several chipped stone artifacts neazby (the association between the structure and <br />artifacts is only implied). The other structural site is a single, small dry-laid masonry feature that <br />appeazs similaz to structures that have been called eagle traps or vision quests elsewhere. At <br />present, these two sites aze considered unevaluated, the former pending exposure of the floor <br />azeas of the structure and possible testing, and the latter pending consultation with Native <br />Americans. The primary lithic source is a felsite quarry that is exposed as an outcrop that has <br />formed a small cone-shaped hill, probably due to the greater erosion resistance of the felsite. <br />This geologic feature is probably a volcanic neck associated with a sill of similar intrusive <br />igneous material that outcrops in numerous azeas azound the project azea and is identified by <br />Tweto (1979) as a Miocene igneous intrusive feature. Such sills and radial dikes, are very <br />common azound the Spanish Peaks, north-northwest of the project azea. The quarry is considered <br />eligible for inclusion on the National Register because of its apparent significance as a tool stone <br />source for the project azea and presumably for other neazby azeas. <br />The historic sites or components include acabin/homestead site (SLA6994), an adobe <br />structure/homestead site (SLA7186), a corral (SLA7003), and a cultural material scatter with <br />several historic features (SLA7187). The two homestead sites aze presently considered unevalu- <br />ated, pending better information on their history and association. The corral is not considered <br />eligible, nor is the cultural material scatter. <br />• Isolated fmds include 63 prehistoric, one historic, one historic and prehistoric, and one <br />resource of unknown age or origin (calm). Most aze simply isolated artifacts, but some include <br />several artifacts. These aze by definition considered not eligible for inclusion on the National <br />Register. Single artifacts or clusters of very few artifacts in azeas where visibility was limited <br />and deposition present were recorded as sites so that the potential for additional buried materials <br />could be assessed. Isolated finds aze listed in a table in Appendix C. <br />Testine <br />Auger probing was used to test five sites and one non-site azea. This testing is considered <br />very preliminary, and with the exception of one site, is not complete. It was initiated primarily <br />to get an impression of the efficacy and necessity of testing in the various depositional settings <br />that aze present at unevaluated sites and along the floor of Lorencito Canyon. Additional testing <br />is recommended at four of the flue tested sites, based on the limited nature of the testing and the <br />presence of one or several positive auger probes at each location (Table 1). A single transect of <br />16 auger probes was excavated on the valley floor of Lorencito Canyon, in an azea that lacked <br />surface cultural materials and that was distant from any significant subsurface exposure. One of <br />these probes was positive. <br />Geoazchaeological Investi ations <br />. Mike McFaul and Grant Smith of LaRarnie Soils Service, Lazamie, Wyoming, have <br />completed preliminary reconnaissance and field work at the project azea. The goals of their <br />