Ecological Land Type

ELT 2b

Elevation Range
Minimum: 
911 m
Minimum in ft: 
2990 ft
Maximum: 
995 m
Maximum in ft: 
3266 ft
Median: 
942 m
Median in ft: 
3091 ft
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
Landforms: 
moderately dissected, weakly to moderately incised fan and pediment surfaces