Soil Summary:
detailed soil survey information is not available for this unit; based on field observations the soils are deep gravelly and very gravelly sandy loams and sandy clay loams lacking lime throughout, with moderate subsoil clay accumulations especially on stable landform positions
Geologic Materials:
alluvium and residuum associated with Quaternary and Tertiary sediments (QTs, QTc, QTsc); Pleistocene alluvium (Qi, Qi3); Holocene piedmont alluvium (Qy,Qyc); and Catalina granite (Tgc) which comprise 45%, 33%, 13% and 6% of the unit, respectively
