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49 <br />• Four major drainages cut through Tract 8: Post Oak Draw, Ralston <br />Draw, and two unnamed drainages. The sides of these were excessively <br />steep and consequently not surveyed. <br />Other areas in Tract 8 that were rejected on the basis of slope in- <br />cluded portions of Secs 8, 23, and 24, and all of Sec. 17, TSn, R92w. <br />Tract 13 was surveyed almost in its entirety, the only exception being <br />the extreme northeast corner of the SE; of Sec. 36, T6n, R92w. A <br />substantial portion of Tract 14 went unsurveyed due to excessive slope. <br />Several small parcels of bottom land were also excluded due to their lo- <br />cation in the Williams Fork River floodplain. Such a location would <br />most likely have been flooded, destroying any cultural remains present. <br />However, a portion of the floodplain was surveyed on the west side of <br />• the Williams Fork River, as the survey crew had to cross the bridge <br />at Sulpher Gulch in order to gain access to the westernmost corner of <br />Tract 14. No prehistoric sites were encountered in this floodplain area, <br />and it is unlikely that sites would have been discovered within the tract <br />boundary in similar locations on the eastern side. No attempt was made <br />to locate sites which might be deeply buried in the alluvium along the <br />canyon bottom. <br />Other Surveyed Areas <br />Several hundred acres adjacent to, but not contained within Tract 8, <br />were surveyed (Table 8). Local residents informed survey crews of several <br />petrograph sites located in Ralston Draw. This localtiy is close enough <br />to the tract to oe subject to secondary impact. Since rock art sites were <br />. not commonly encountered during the survey, the decision was made to <br />