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

Land Type Association: LTA 2

Ecological Unit: Upper Sonoran desert on fans, terraces and weakly consolidated pediments with limy soils

Map with the ELT 2b polygon highlighted.

ELT 2b

Catalina