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• <br />n <br />f. J <br />MAP UNIT: 988 -Valleycity -Rock outcrop complex. 30 to 60 percent slopes <br /> <br />Parent Material: Residuum <br />State Geologic Symbol: Kdb -Dakota and Burro Canyon Formations <br />COMPOSITION <br />70 percent Valleycity soll <br />20 percent rock outcrop as rlm rock and cliffs <br />Contrasting Indusrons: td percent Bowbac soil on colluviai slopes <br />INTERPRETATIONS <br />Litt Layers: <br />Lr/t Layer 1 Average Depth: a inches <br />Lilt Layer 2 Average Depth: 12 inches <br />Total Lilt Layer Average Depth: 16 inches <br />Other Considerations: Rock outcrop generally occurs as mesa rlm rock at the top of the mesa <br />side slopes. Coal seams <br />often occur at the base of the mesa side slopes. Most delineations in this mep unit have naturally <br />occurring vegetation. <br />• <br />MAP UNIT SET'-fINGS <br />Slope Range 30 to 60 percent <br />Elevation Range: 5560 to 5760 feet <br />Aspect: All <br />Landlorm: Mesa sldeslope <br />