Soil Summary:
dominant soils are shallow to moderately deep to bedrock, very flaggy sandy loam surfaces over very channery and flaggy sandy loams, no lime present, weak to moderate development (organic matter accumulation); unit dominated by Pima County soil survey map unit 75 (Spudrock-Boriana complex, 10 to 35 percent slopes). This unit comprises 91% of the ELT
Geologic Materials:
slope alluvium, colluvium and residuum associated mostly with the Catalina-Rincon igneous metamorphic complex (TXm) which comprises 100% of the unit, respectively