Soil Summary:
very deep, textures vary widely and soils are often stratified – very gravelly fine sand surfaces with extremely gravelly sand layers below, lime throughout, no or little development (relatively recent alluvium); this unit is dominated by Pima County map unit 5 (Arizo-Riverwash complex, 0 to 3 percent slopes) which comprises 97% of the ELT
Geologic Materials:
dominated by Cienega Creek channel deposits and Holocene terraces (Qyr, Qyc); Cienega Creek middle to late Pleistocene terraces (Qir); and late Holocene deposits in active stream channels and low terraces (Qy2) which comprise 68%, 16% and 5% of the unit, respectively
