ELT 28b

Elevation Range
Minimum: 
1234 m
Minimum in ft: 
4049 ft
Maximum: 
1290 m
Maximum in ft: 
4232 ft
Median: 
1259 m
Median in ft: 
4131 ft
Soil Summary: 
dominant soils are very deep, very gravelly loamy sand and fine sandy loam to clay loam surfaces over gravelly, very gravelly and extremely gravelly sandy loam, fine sandy loam and or loamy sands or clay, clay loam and gravelly clay loam subsurface layers, limy throughout to more than a foot to lime, moderate to strong development (lime and clay accumulation) ; unit is dominated by Pima County soil survey map unit 79 (Tombstone very gravelly loam, 15 to 50 percent slopes), Pima County soil survey map unit 6 (Bernardino-Tombstone asssociation, 5 to 16 percent slopes) and Cochise County, Northwestern Part soil survey unit 79 (Stronghold-McAllister-Elgin complex, 5 to 25 percent slopes). This units comprise 69%, 24% and 7% of the ELT
Geologic Materials: 
alluvium and residuum associated with sandstone, siltstone and conglomerate, undivided (QTs) and Holocene piedmont alluvium, undivided (Qy) which comprise 70% and 18% of the unit, respectively
Landforms: 
finely dissected, weakly to moderately incised fan and pediment surfaces
LTA 28
Mesquite grasslands on fans, terraces, and weakly consolidated pediments of various parent materials

Map with the ELT 28b polygon highlighted.

Catalina