Soil Summary:
mostly shallow to bedrock, a complex of limy very gravelly over extremely cobbly loams with little or no development associated with limestone, better developed extremely channery loams over extremely channery clays related to phyllite and lacking lime, and limy extremely gravelly loams associated with sandstone; dominated by Pima County soil survey map units 23 (Deloro-Andrada complex, 5 to 35 percent slopes), 24 (Deloro-Rock outcrop complex, 15 to 60 percent slopes), and 42 (Mabray-Deloro-Rock outcrop complex, 20 to 65 percent slopes) which comprise 47%, 28% and 23% of the ELT, respectively
Geologic Materials:
alluvium, colluvium and residuum associated with heterogeneous granodioritic rocks of the northern White Tanks (Xgd); Bolsa, Abrigo and Martin Formations (Dcu); Middle Proterozoic Apache Group and Troy Quartzite (Ya); Pantano Formation, lower member (Tpl); and Pantano Formation, Aqua Verde Facies (Tpav) which comprise 35%, 26%, 18%, 9% and 6% of the ELT, respectively
