Soil Summary:
dominant soils are shallow to granite and similar rocks; very gravelly sandy loams throughout or gravelly coarse sandy loam over sandy clay loam; no lime; no or modest soil development (clay accumulation); dominated by Pima County soil survey map unit 70 (Romero-Oracle complex, 25 to 60 percent slopes). This unit comprises 78% of the ELT
Geologic Materials:
alluvium, colluvium and residuum associated with the Catalina-Rincon igneous metamorphic complex (TXm) and heterogeneous granodioritic rocks of the north White Tank Mountains (Xgd) which comprise 98% and 2% of the unit, respectively
