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<br />expected to have existed throughout the past 10,000 years. mere <br />~ is no evidence of significant landform alteration during this time. <br />• 7herefara, site density is expected to be lcw is the areas immediately <br />south of Somerset, including those areas investigated during the <br />course of this survey. <br />Thin a rp iori assumpeian is partially supported by the results <br />of the reconnaissance. Materials evidencing prehistoric aceupatioa <br />were not fnund. This may be in part the result of Che topographic <br />characteristics of the specific areas investigated. Most of these <br />localities are located on active flood plains alaag the perimeters <br />of Sglvester Gulch or the North Fork Gunnison River, or on broad <br />benches overlooking these drainages. Ia both areas, alluvatiaa is <br />also accampaaied by a certain amount of deflation which should <br />disclose the presence of these materials if present. Therefore, <br />their noted absence is considered to be primarily accountable to <br />1 <br />• the former hypothesis, that geographic constraints upon human <br />meb111ty served to discourage significant instances of prehistoric <br />occupation. <br />RECONNAISSANCE METdODOLOGY <br />All areas of potential impact were exami.aed by linear t-averses <br />from a paint of origin arbitrarily chosen oa the basis of vehicular <br />access, to the terminus. All areas is the immediate vicinity of <br />impact localities were similarly investigated if local slope did <br />- not exceed 207.. Slope values in excess of 207. are considered too <br />extreme to encourage occupation or retain evidence of it as the <br />result of down-slave movement of surface materials. <br />• 13 <br />