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Backhoe Trenches <br />• <br />The placement of the backhoe trenches was closely <br />aligned with the location of. the test pits. In the event <br />that no cultural material was found through controlled exca- <br />vation but was ea~pected, trenching was incorporated as a mode <br />of insurance. It:s assistance in defining cultural deposits <br />proved invaluable:. <br />A total of nine backhoe trenches were utilized during <br />the testing proceedures. Three trenches, numbers 2, 7, and 8, <br />were excavated within the vicinity of Test 7 in an attempt to <br />define any cultural deposits associated with the Scottsbluff Type II <br />. and the Plano basal fragment. Soils exposed within these <br />trenches ranged between .15 and 1.25 meters in depth, and • <br />regularly exhibited a very dark grayish brown sandy loam above <br />the sandstone bedrock. The relative position of the artifacts <br />to the surface indicates cultural materials would be most <br />prevalent in the upper levels; however, no definite correlation <br />could be ascertained. Reddened sandstone fragments, as if <br />burned, were loc<lted within this level but are undoubtedly of <br />non-cultural origin. No discernible.cultural material was <br />located within this vicinity. The only foreign object present <br />was a deer tibia bone of a recent age. <br />Trenching activity to the west and downslope, Trench 3, <br />within a closer proximity of the area's primary drainage, exposed <br />a definite soil change. Within one trench, 92 meters in length <br />• <br />14 <br />