The sediments originated principally from acid igneous material with some shale and sandstone additions. The climate at the type location is semiarid continental with mean annual precipitation of 10 to 15 inches. Agua Fria soils have very gravelly and cobbly material at depths shallower than 40 inches. Pojoaque and Harvey soils lack an argillic horizon and are calcareous throughout the profile. Well-drained, moderate to moderately slow permeability.
Vegetation is blue grama, galleta, ring muhly, sand dropseed, cholla, and pinyon-juniper.
These soils are of small extent in Santa Fe County but probably occurs in adjoining counties to the north. The zone from 0 to 5 inches. The zone from 5 to 13 inches. The zone from 13 to 30 inches.