Ecological Land Type

ELT 185b

Elevation Range
Minimum: 
750 m
Minimum in ft: 
2459 ft
Maximum: 
812 m
Maximum in ft: 
2663 ft
Median: 
770 m
Median in ft: 
2526 ft
Soil Summary: 
very deep, textures vary widely and soils are often stratified – very gravelly fine sand to sandy loam surfaces with extremely gravelly sand to fine sandy loam layers below, limy, no or little development (relatively recent alluvium); this unit is dominated by Pima County map units 3 (Anthony fine sandy loam, 0 to 3 percent slopes) and 5 (Arizo-Riverwash complex, 0 to 3 percent slopes) which comprise 60% and 37% of the ELT, respectively
Geologic Materials: 
dominated by Holocene piedmont alluvium, undivided (Qy); Holocene channel deposits and terraces (Qyr); late to latest Pleistocene piedmont alluvium (Qi3r, Qi3) which comprise 57%, 20% and 14% of the unit, respectively
Landforms: 
undissected to coarsely dissected, weakly incised alluvial terraces and floodplain
LTA 185

Map with the ELT 185b polygon highlighted.Photo Point 066Photo Point 065Photo Point 085Photo Point 087