Soil Summary:
very deep; very gravelly sandy loam surface layers over gravelly sandy loam, very gravelly sandy loam, and extremely gravelly sandy loam or fine sandy loam, loam and very gravelly sandy clay loam subsurface layers; lime throughout; moderate (lime accumulation) development; dominated by Pima County soil survey unit 78 (Stagecoach-Sahuarita association, 1 to 8 percent). This unit makes up 75% of this ELT.
Geologic Materials:
alluvium and residuum associated with Quaternary and Tertiary sandstone, siltstone and conglomerate, undivided (QTs), and Holocene and Pleistocene piedmont alluvium (Qy, Qi3) which comprise 88% and 12% of the unit, respectively
