The average annual precipitation is 15 inches characterized by a pronounced summer maximum with frequent heavy thunderstorms of short duration. These are the Alicia , Litle , Manzano , and Witt soils. Alicia, Manzano, and Witt soils have less than 35 percent clay in the control section. Witt soils have an argillic horizon. Litle soils have shale bedrock at depths of less than 40 inches and have smectitic mineralogy.
Permeability is very slow.
Runoff is negligible is depressional areas, high on 0 to 1 percent slopes, and very high on 1 to 3 percent slopes. Rangeland is the principal use. Native vegetation is rabbitbrush, cane cholla, snakeweed, blue grama, and ring muhly. The series is of moderate extent. These soils were formerly included in the Montoya series.