Soil Summary:
dominant soils are very shallow to moderately deep to bedrock, very flaggy and extremely or very gravelly sandy loam and loam surfaces over very channery, flaggy, and gravelly sandy loams and loams, no lime present, no to moderate development; unit dominated by Pima County soil survey map units 75 (Spudrock-Boriana complex, 10 to 35 percent slopes) and 20 (Cortaro-Rock outcrop-Faraway complex, 15 to 45 percent slopes). These units comprise 74% and 26% of the ELT, respectively
Geologic Materials:
alluvium, colluvium and residuum associated with the Catalina-Rincon igneous metamorphic complex (TXm) comprises 100% of the unit