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APPENDIX A <br />MAPPING UNIT DESCRIPTIONS <br />• ROCK OUTCROP (RO) <br />Outcrops of geologic strata on which no soil has formed. <br />DISTURBED LANDS (DL) <br />Land which has been disrupted by removal, burial or mixing to the point <br />were it does not function as a soil. <br />STONELAND, BASALT (5) <br />Land where stones larger than 5 inches in diameter makeup greater than <br />90 percent of the soil volume. <br />SARATON STONEY LOAM (2) <br />This mapping unit is made up of 95 percent Saraton stoney loam, less <br />than 5 percent sandstone outcrop and less than 5 percent Delson stoney loam. <br />The Delson stoney loam occurs as an inclusion in isolated, small areas where <br />the slopes have slumped and created a flatter slope so deeper soil could <br />develop. The Saraton stoney loam is consistently shallow on steep slopes <br />greater than 60 percent and has between 20 and 60 percent basalt boulders in <br />the profile. <br />• RAZOR STONEY CLAY (3) <br />This mapping unit is made up of 90 percent Razor stoney clay with less <br />than 5 percent Delson stoney loam and 5 percent shale outcrop, each. The <br />Razor stoney clay is covered on the surface with basalt boulders and the <br />profile reflects the influence of the basalt. The profiles are consistently <br />deep with few racks in the profile. <br />SARATON-BEENOM COMPLEX (4) <br />Thi s mapping uni t i s made up of 30 percent Saraton soi 1 and i s on the <br />upper parts of slopes in steeper areas. The Beenom soil makes up about 70 <br />percent and is in the lower slope positions and in small valleys. Sandstone <br />and shale outcrops are associated with these soils and the Beenom soils are <br />strongly influenced by these parent materials. The profiles are consistently <br />shallow with sandstone channery. <br />DELSON DEEP AND DELSON YERY DEEP (1) <br />This mapping unit is made up of 65 percent Delson deep soil and 30 <br />percent Delson very deep soil with less than 5 percent inclusions of both <br />Saraton stoney loam and Razor stoney clay. The Delson very deep soil occurs <br />on the flat portions of old slides and slumps. Basalt boulders are common on <br />the surface but make up less than 10 percent by volume of the soil profile. <br />• <br />6 <br />