Ecological Land Types within LTA 173.
ELT 173a
Soil Summary:
very deep, gravelly or very gravelly loam and sandy loam surfaces with subsoils ranging from clays to very gravelly sandy clay loams, lime occurs deep in the profile or is lacking altogether, well developed (clay accumulation); unit is dominated by Pima County soil survey map units 10 (Caralampi extremely gravelly sandy loam, 15 to 45 percent slopes) and 84 (White House-Caralampi complex, 5 to 25 percent slopes). These units comprise 49% and 45% of the ELT, respectively
Geologic Materials:
alluvium and residuum associated with sandstone, siltstone, and conglomerate, undivided (QTs) comprises 96% of the unit
Landforms:
moderately dissected, moderately to deeply incised fan and pediment surfaces