Ecological Land Types within LTA 130.

ELT 130a

Elevation Range

Minimum:

1095 m

Minimum in ft:

3593 ft

Maximum:

1406 m

Maximum in ft:

4614 ft

Median:

1213 m

Median in ft:

3980 ft

Soil Summary:

detailed soil survey information is not available for this unit; correlates with GES unit 490 characterized by very cobbly and cobbly sandy loams deep to granite or granite-like bedrock, lacking lime throughout, acid soils lacking lime throughout, minimal to modest soil development (clay accumulation), and associated rock outcroppings

Geologic Materials:

slope alluvium, colluvium and residuum associated mostly with Catalina-Rincon igneous metamorphic complex (TXm). It comprises 98% of the unit

Landforms:

coarsely to finely dissected elevated plains and hills with weak drainage incision

ELT 130b

Elevation Range

Minimum:

1115 m

Minimum in ft:

3658 ft

Maximum:

1411 m

Maximum in ft:

4630 ft

Median:

1256 m

Median in ft:

4121 ft

Soil Summary:

Geologic Materials:

slope alluvium, colluvium and residuum associated mostly with Catalina-Rincon igneous metamorphic complex (TXm) and granite (TXg). They comprise 93% and 7% of the unit

Landforms:

coarsely to finely dissected elevated plains and hills with weak drainage incision

ELT 130c

Elevation Range

Minimum:

1146 m

Minimum in ft:

3760 ft

Maximum:

1405 m

Maximum in ft:

4610 ft

Median:

1257 m

Median in ft:

4124 ft

Soil Summary:

dominant soils are very shallow and shallow to granite and similar rocks; very cobbly loams or very gravelly sandy loams throughout; some soils have gravelly coarse sandy loam surfaces and sandy clay loam subsoils; no lime; little or no soil development to modest development (clay accumulation); nearly complete coverage of the unit indicates Pima County soil survey map units 52 (Oracle-Romero-Rock outcrop complex, 5 to 35 percent slopes) and 40 (Lampshire-Romero-Rock outcrop complex, 10 to 65 percent slopes) dominate

Geologic Materials:

slope alluvium, colluvium and residuum associated mostly with Catalina-Rincon igneous metamorphic complex (TXm). It comprises 96% of the unit

Landforms:

coarsely to moderately dissected elevated plains and hills with weak drainage incision

ELT 130d

Elevation Range

Minimum:

1180 m

Minimum in ft:

3873 ft

Maximum:

1408 m

Maximum in ft:

4618 ft

Median:

1292 m

Median in ft:

4239 ft

Soil Summary:

Geologic Materials:

slope alluvium, colluvium and residuum associated mostly with Catalina-Rincon igneous metamorphic complex (TXm). It comprises 99% of the unit

Landforms:

moderately dissected elevated plains and hills with moderate drainage incision