Soil Summary:
mostly shallow and moderately deep to bedrock, a complex of extremely gravelly loams associated with schist with lime accumulations and non-limy extremely gravelly sandy loams over extremely gravelly sandy clays related to rhyolite; soils are moderately to well developed (lime and clay accumulations); dominated by Pima County soil survey map unit 58 (Pantano-Granolite complex, 5 to 25 percent slopes) which comprises 99% of the ELT
Geologic Materials:
alluvium, colluvium and residuum associated with Earp and Horquilla Formations, undivided (P3eh) and the Catalina-Rincon igneous metamorphic complex (TXm) which comprise 75% and 23% of the ELT, respectively