Soil Summary:
very deep, very gravelly sandy loam to sandy loam surfaces with very gravelly sandy clay loam to clay subsoils, lime is absent or deeper in the soil profile, well developed (subsoil clay accumulation); nearly complete coverage of the unit indicates Pima County soil survey map units 9 (Caralampi extremely gravelly sandy loam, 5 to 15 percent slopes) and 73 (Sasabe-Caralampi complex, 1 to 15 percent slopes) dominate
Geologic Materials:
alluvium and residuum associated with sandstone, siltstone and conglomerate, undivided (QTs); early to latest Pleistocene alluvium (Qi1, Qi2, Qi3); Holocene river deposits, undivided (Qyr); and Holocene piedmont alluvium, undivided (Qy) which comprise 42%, 22%,18%, and 13% of the unit, respectively
