ELT 7a

Elevation Range

Minimum:

827 m

Minimum in ft:

2712 ft

Maximum:

935 m

Maximum in ft:

3068 ft

Median:

858 m

Median in ft:

2815 ft

Soil Summary:

dominant soils are very shallow and shallow to granite and similar rocks; very gravelly sandy loams throughout, some soils with gravelly clay loam surfaces and gravelly clay and clay subsoils; no lime; no to moderate soil development (clay accumulation); dominated by Pima County soil survey map unit 13 (Cellar-Lehmans complex, 5 to 25 percent slopes). This unit comprises 94% of the ELT, respectively

Geologic Materials:

alluvium and residuum associated with the Catalina-Rincon igneous and metamorphic complex (TXm) and middle to late Pleistocene piedmont alluvium, undivided (Qi),which comprise 74% and 20% of the unit, respectively

Landforms:

moderately to finely dissected, weakly to moderately incised fan and pediment surfaces

Land Type Association: LTA 7

Ecological Unit: Upper Sonoran desert on hills and mountains derived from granite, gneiss, and similar rocks

Map with the ELT 7a polygon highlighted.