Soil Summary:
soils include very and extremely gravelly loams shallow to a caliche hardpan and very deep, very gravelly sandy loam to sand surface soils over gravelly, very gravelly and extremely gravelly sandy loam to sand subsurface layers, soils are limy throughout, moderate to strong development (lime accumulation and cementation); unit dominated by Pima County soil survey map units 22 (Delnorte-Stagecoach complex, 1 to 20 percent slopes) and 67 (Redo very gravelly sand, 15 to 50 percent slopes). These units comprise 68% and 13% of the ELT, respectively
Geologic Materials:
alluvium and residuum associated with middle to late Pleistocene piedmont alluvium, undivided (Qi) and sandstone, siltstone, and conglomerate, undivided (QTs) which comprise 95% and 5% of the unit, respectively
