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Structure. This location is on the downdip side of a sharp <br />• ridge that is held up by sandstone. Rocks are at N80W, 19° NE <br />based on a field-measured dip about 200 feet west of the area. <br />To~ograohv and Drainage. The long, approximately east-west, <br />orientation of the area is parallel to sub-parallel to the <br />topography on a 22.5% (4.4:1) slope. The site is about 15 to 50 <br />feet above a major drainage to the north. <br />Comments and Evaluation. This area is on a slope above a <br />major ephemeral stream course. Keyways or benches to stabilize the <br />topsoil should be oriented essentially parallel to the contour and <br />should be graded to allow drainage from the subsurface under the <br />topsoil. <br /> 4.4.5 Stockpile Area E. This area includes about three acres and <br />• is oriented essentially east-west, in the NE;, se c. 17 about 900 <br /> feet southeast of Area D, and on th e backslope of the same ridge. <br />Rock Tvpe. The predominant rock type is sandstone. <br />Structure. Strike and dip of the ridge on which this site is <br />located is about N60W, 26° NE. <br />Tooograohv and Drainage. The east-west orientation of the <br />site is parallel to sub-parallel to the topography on a 21% (4.8:1) <br />slope and is over 170 feet above a major ephemeral drainage. <br />Comments and Evaluation. This area is partly along the crest <br />of a prominent ridge upheld by resistant sandstone. Keyways or <br />benches to stabilize the topsoil should be cut generally parallel <br />to the topography and should be graded to allow subsurface drainage <br />• under the topsoil. <br />31 <br />