Soil Summary:
a major soil component ranges from shallow to caliche hardpan to very deep, sandy loam to very gravelly sandy loam and loam surfaces over gravelly, very gravelly, and extremely gravelly sandy loam and loam subsurface layers, is limy throughout, and has moderate to strong development (lime accumulation and cementation); other soils are very deep, very gravelly sandy loam to sand surface soils over gravelly, very gravelly and extremely gravelly sandy loam to sand subsurface layers, limy throughout, moderate to strong development (lime accumulation); other soil components are finer textured and very deep, typically silt loam surfaces over silty clay and clay subsurface layers, lime and gypsum concentrations occur throughout, moderate to strong development (lime and gypsum accumulation, clay accumulation); still other soils are very deep, gravelly sandy loam to loamy sand surface layers over subsurface layers ranging from gravelly and very gravelly sandy loams to gravelly and very gravelly loamy sands and coarse sands, often stratified, lime content varies, with no to little development; dominated by Cochise County Northeastern Part soil survey map units77 (Stagecoach-Whitlock-Delnorte complex, Chihuahuan, 5 to 20 percent slopes), 14 (Calcigypsids-Contention-Redo complex, Chihuahuan, 5 to 45 percent slopes) and 1 (Agustin-Yturbide-Kokan complex, Chihuahuan, 1 to 8 percent slopes). These units comprise 38%, 33% and 23% of the ELT, respectively
Geologic Materials:
alluvium and residuum associated with Late Holocene alluvium (Qy2); Quiburis basin fill deposits, undivided (Tq); Late Pleistocene alluvium (Qi3); Late Pliocene alluvium, widespread capping Quiburis basin (Tqf); Middle Pleistocene alluvium (Qi2); and Quiburis basin fill deposit, playa/distal fan facies (Tqp) which comprise 26%, 21%, 17%, 10%, 7% and 6% of the ELT, respectively
