ELT 153a

Elevation Range
Minimum: 
717 m
Minimum in ft: 
2353 ft
Maximum: 
827 m
Maximum in ft: 
2714 ft
Median: 
780 m
Median in ft: 
2559 ft
Soil Summary: 
very deep,gravelly sandy loam over gravelly sandy loam and gravelly sandy clay loam; limy at or within a foot or so of the surface; no or modest development (clay accumulation); recent drainage channels are very deep; very gravelly fine sand over extremely gravelly sand, limy throughout with no soil development; Pima County soil survey map units 54 (Palos Verdes-Jaynes complex 2 to 8 percent slopes) and 5 (Arizo-Riverwash complex, 0 to 3 percent slopes) dominate. They comprise 68% and 31% of the ELT, respectively
Geologic Materials: 
alluvium and residuum associated with early to latest Pleistocene alluvium (Qi1, Qi2, Qi3) and Holocene piedmont alluvium, undivided (Qy, Qy1) which comprise 71% and 29% of the unit, respectively
Landforms: 
undissected to coarsely dissected, weakly incised fan and pediment surfaces
LTA 153
Upper Sonoran desert on fans, terraces and weakly consolidated pediments with limy soils

Map with the ELT 153a polygon highlighted.

Catalina