Ecological Land Type

ELT 25d

Elevation Range

Minimum:

988 m

Minimum in ft:

3240 ft

Maximum:

1104 m

Maximum in ft:

3623 ft

Median:

1044 m

Median in ft:

3425 ft

Soil Summary:

soils mostly shallow to bedrock in a complex of limy very gravelly over extremely cobbly loams with little or no development associated with limestone and better developed non-limy extremely channery loams over extremely channery clays related to phyllite; Pima County soil survey map unit 42 (Mabray-Deloro-Rock outcrop complex, 20 to 65 percent slopes) comprises 90% of the ELT

Geologic Materials:

alluvium, colluvium and residuum associated with old alluvium (QTs); the Lower Davidson Canyon facies of Pantano Formation, mixed conglomerate, reddish (Tpl); upper member of Pantano Formation (Tpu); and Turkey Track Andesite (Tpv) which comprise 41%, 15%, 12% and 11% of the ELT, respectively

Landforms:

undissected to coarsely dissected, weakly incised hills and pediment surfaces

Land Type Association: LTA 25

Ecological Unit: Upper Sonoran desert on hills and mountains of sedimentary, metasedimentary, and extrusive rocks

Map with the ELT 25d polygon highlighted.