Ecological Land Type

ELT 179b

Elevation Range
Minimum: 
805 m
Minimum in ft: 
2642 ft
Maximum: 
853 m
Maximum in ft: 
2800 ft
Median: 
833 m
Median in ft: 
2733 ft
Soil Summary: 
soils are associated with washes and areas of recent alluvial deposition, they are very deep with textures that vary widely and are often stratified – typically they are sandy loams over gravelly sandy loams and loamy coarse sands with no lime present, these soils have no or little development (relatively recent alluvium); this unit is dominated by Pima County soil survey map unit 35 (Hayhook sandy loam, 1 to 5 percent slopes). This unit comprises 99% of the ELT
Geologic Materials: 
dominated by late to latest Pleistocene piedmont alluvium (Qi3) and middle to late Pleistocene piedmont alluvium (Qi2) which comprise 74% and 21% of the unit, respectively
Landforms: 
coarsely dissected, weakly incised fan and pediment surfaces