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Sample Site Description, <br /> Adjacent Property <br /> In the summer of 1983, 12 soil samples at 9 locations were retrieved from a <br /> large open meadow surrounded by low ridges. The samples were air-dried and <br /> subjected to various chemical and physical analyses. The soil has a Mancos <br /> shale parent material and is moderately well-drained. The soil has been formed <br /> from alluvial Mancos shale from the surrounding shale ridges and is quite deep <br /> in many places. It is a typical soil derived from Mancos shale: that is, it is <br /> fairly fine-textured, blocky in structure, and dark brown in color. <br /> All of the soils are near neutrality with respect to pH. Those that appear <br /> to be more weathered are leached of any basic salts that may have been present <br /> in the parent material. Soluble salt contents of the soils are low as are the <br /> sodium adsorption ratios, thus indicating a low salt hazard. The texture of the <br /> soils is a typical silt loam with a moderately high saturation percentage. The <br /> organic matter contents of the soils are relatively high, probably due to the <br /> abundant grass which the soil supports in most places. Several groves of aspen <br /> trees are located near the perimeter of the meadow. <br /> Nitrogen and phosphorus contents of the soils are low, but the remaining <br /> fertility components are in abundance. Potassium is high, which is a character- <br /> istic of most soils derived from Mancos shale. <br />