Ecological Land Type

ELT 21h

Elevation Range
Minimum: 
774 m
Minimum in ft: 
2538 ft
Maximum: 
940 m
Maximum in ft: 
3083 ft
Median: 
834 m
Median in ft: 
2736 ft
Soil Summary: 
very deep, textures vary widely and soils are often stratified – very gravelly fine sand to loam surfaces with extremely gravelly sand to silty clay loam layers below, limy, no or little development; dominated by Pima County soil survey map units 30 (Glendale silt loam, 0 to 3 percent), 5 (Arizo-Riverwash complex, 0 to 3 percent), and 3 (Anthony fine sandy loam, 0 to 3 percent). These units comprise 46%, 27% and 25% of the ELT, respectively
Geologic Materials: 
river alluvium associated with modern river channel deposits (Qyc, Qycr), active channel and Holocene terraces (Qyr), and Holocene alluvium (Qy) which comprise 46%, 39% and 7% of the ELT, respectively
Landforms: 
coarsely dissected, weakly to moderately incised mainly on river terrace breaks; terraces themselves show little dissection
LTA 21
Moderate gradient river channel and terraces

Map with the ELT 21h polygon highlighted.Photo Point 278, Photo Point 279, Photo Point 280Photo Point 011Photo Point 013Photo Point 014Photo Point 015Photo Point 016Photo Point 017, Photo Point 018, Photo Point 019Photo Point 020Photo Point 022Photo Point 023, Photo Point 024, Photo Point 026Photo Point 027Photo Point 124, Photo Point 125Photo Point 123Photo Point 120Photo Point 175Photo Point 113Photo Point 081, Photo Point 084Photo Point 181Photo Point 177, Photo Point 178Photo Point 180