Ecological Land Types within LTA 11.

ELT 11a

Elevation Range

Minimum:

842 m

Minimum in ft:

2761 ft

Maximum:

1110 m

Maximum in ft:

3643 ft

Median:

965 m

Median in ft:

3166 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 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 units 40 (Lampshire-Romero- Rock outcrop complex, 10 to 65 percent slopes), 14 (Cellar-Rock outcrop complex, 30 to 65 percent slopes), and 13 (Cellar-Lehmans complex, 5 to 25 percent slopes). These units comprise 47%, 27% and 25% of the ELT, respectively

Geologic Materials:

alluvium, colluvium and residuum associated with the Catalina-Rincon igneous metamorphic complex (TXm, TXmy) and Pleistocene piedmont alluvium (Qi2, Qi3) which comprise 97% and 3% of the unit, respectively

Landforms:

moderately dissected, moderately to deeply incised mountain slopes

ELT 11b

Elevation Range

Minimum:

914 m

Minimum in ft:

2998 ft

Maximum:

1651 m

Maximum in ft:

5418 ft

Median:

1223 m

Median in ft:

4013 ft

Soil Summary:

dominant soils are very shallow and shallow to granite and similar rocks; very cobbly loams or very gravelly sandy loams throughout; no lime; little or no soil development; dominated by Pima County soil survey map unit 40 (Lampshire-Romero- Rock outcrop complex, 10 to 65 percent slopes). This unit comprises 74% of the ELT

Geologic Materials:

alluvium, colluvium and residuum associated with the Catalina-Rincon igneous metamorphic complex (TXm) and landslide deposits (Qls) which comprise 99% and 1% of the unit, respectively

Landforms:

moderately to finely dissected, deeply incised mountain slopes

ELT 11c

Elevation Range

Minimum:

906 m

Minimum in ft:

2974 ft

Maximum:

1099 m

Maximum in ft:

3606 ft

Median:

1010 m

Median in ft:

3314 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 or very gravelly sandy loam surfaces and gravelly clay loam, gravelly clay and clay subsoils; no lime; no to moderate soil development (clay accumulation); dominated by Pima County soil survey map units 13 (Cellar-Lehmans complex, 5 to 25 percent slopes), 14 (Cellar-Rock outcrop complex, 30 to 65 percent slopes), and 16 (Chimenea very gravelly fine sandy loam, 5 to 15 percent slopes). These units comprise 43%, 24% and 12% of the ELT, respectively

Geologic Materials:

alluvium, colluvium and residuum associated with the Catalina-Rincon igneous metamorphic complex (TXm, TXmy), Pleistocene piedmont alluvium (Qi2), and sandstone, siltstone and conglomerate, undivided (QTs) which comprise 97%, 1% and 1% of the unit, respectively

Landforms:

moderately to finely dissected, weakly to moderately incised mountain slopes

ELT 11d

Elevation Range

Minimum:

1009 m

Minimum in ft:

3312 ft

Maximum:

1495 m

Maximum in ft:

4906 ft

Median:

1146 m

Median in ft:

3760 ft

Soil Summary:

dominant soils are shallow to granite and similar rocks; very gravelly sandy loams throughout or gravelly coarse sandy loam over sandy clay loam; no lime; no or modest soil development (clay accumulation); dominated by Pima County soil survey map unit 70 (Romero-Oracle complex, 25 to 60 percent slopes). This unit comprises 78% of the ELT

Geologic Materials:

alluvium, colluvium and residuum associated with the Catalina-Rincon igneous metamorphic complex (TXm) and heterogeneous granodioritic rocks of the north White Tank Mountains (Xgd) which comprise 98% and 2% of the unit, respectively

Landforms:

moderately to finely dissected, moderately to deeply incised mountain slopes

ELT 11e

Elevation Range

Minimum:

1130 m

Minimum in ft:

3706 ft

Maximum:

1332 m

Maximum in ft:

4370 ft

Median:

1179 m

Median in ft:

3868 ft

Soil Summary:

Geologic Materials:

alluvium, colluvium and residuum associated with the Catalina-Rincon igneous metamorphic complex (TXm), felsic volcanic rocks (Tf), Coyote Wells facies (Tpcw), and Pleistocene piedmont alluvium (Qi3) which comprise 85%, 6%, 5% and 3% of the unit, respectively

Landforms:

moderately to finely dissected, weakly to moderately incised mountain slopes

ELT 11f

Elevation Range

Minimum:

1088 m

Minimum in ft:

3569 ft

Maximum:

1657 m

Maximum in ft:

5435 ft

Median:

1336 m

Median in ft:

4383 ft

Soil Summary:

Geologic Materials:

alluvium, colluvium and residuum associated with the Catalina-Rincon igneous metamorphic complex (TXm) and landslide deposits (Qls) which comprise 98% and 1% of the unit, respectively

Landforms:

moderately to finely dissected, deeply incised mountain slopes