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8 <br />• As a criterion for determining the relative intensity for survey <br /> efforts in the project, the degree of slope was not rigidly applied. <br />Many areas were surveyed despite the presence of grades exceeding 15`0. <br />However, no sites and very few isolated artifacts were observed on any <br />but the most gentle slopes. The same procedure has been utilized else- <br />where with substantially similar results (Jennings and Daniels 1976). <br />Since much of the region in which the tracts are located is highly <br />dissected, there are many instances where grades exceed the 15q value. <br />Many of these more steeply inclined areas were surveyed in transit to <br />other areas, or because of desireable terrain. No slope was eliminated <br />from the survey without field checking, unless examination of topographic <br />map coverage showed that a particular locality was too steep. <br />The second physiographic consideration used in determining areas <br />• suitable for survey is aspect. Anorth-facing slope is considered <br />the least desirable aspect,as it offers the least protection from <br />the prevailing northwesterly winds and allows for limited inso- <br />lation, especially during the early mornings. Amore suitable exposure <br />would be to the south and east. This orientation would provide more <br />protection in inclement weather and would receive more and earlier <br />warmth from the morning sun, making such a locality more comfortable <br />and habitable. <br />Considering the relative merits of a southerly exposure, we would <br />expect archaeological sites to occur more frequently on the south-facing <br />slopes. Using the foregoing assumptions as a guide, the survey effort <br />was organized along these lines. One factor that interfered with this <br />procedure was the structure of the Williams Fork Mountains. These mountains <br />• <br />