Ecological Land Type

ELT 21d

Elevation Range

Minimum:

958 m

Minimum in ft:

3142 ft

Maximum:

1022 m

Maximum in ft:

3353 ft

Median:

964 m

Median in ft:

3163 ft

Soil Summary:

very deep, textures vary widely and soils are often stratified – very fine sandy loam to silty clay surfaces with very gravelly coarse sand to silty clay layers below, limy, no or little development, some high water tables on lower terraces; dominated by Cochise County, Northwestern Part soil survey units 44 (Glendale-Hantz complex,Sonoran, 0 to 3 percent), 18 (Cascabel, Quiburi soils, and Riverwash, Sonoran, 0 to 5 percent slopes), and 41 (Gila-Glendale complex, Sonoran, 0 to 2 percent slopes). These units comprise 32 %, 30% and 25% of the ELT, respectively

Geologic Materials:

river alluvium associated with Holocene alluvium (Qy) which comprises 100% of the ELT

Landforms:

coarsely dissected, weakly to moderately incised mainly on river terrace breaks; terraces themselves show little dissection

Land Type Association: LTA 21

Ecological Unit: Moderate gradient river channel and terraces

Map with the ELT 21d polygon highlighted.