Soil Summary:
dominant soils are very shallow and shallow to granite and similar rocks; very cobbly loams or very gravelly sandy loams throughout; no lime; no soil development; the mapped area is dominated by Pima County soil survey map unit 40 (Lampshire-Romero- Rock outcrop complex, 10 to 65 percent slopes) which comprises 99% of the unit
Geologic Materials:
alluvium, colluvium and residuum associated with granodiorite (Xgl, Xgc) and Tertiary sediments (Ts) which comprise 86% and 13% of the unit, respectively