Carbonate content ranges from 0 to 5 percent. Ignacio and Turnback soils have bedrock at depths of 20 to 40 inches. Parida soils have more than 15 percent rock fragments in the particle-size control section. Koshare soils contain 10 to 25 percent mica content in the coarse silt to fine sand fraction. Kitsili soils are effervescence throughout the entire profile and contain less than .6 percent organic matter.
Ojito soils are moderately deep to bedrock.
Begay soils occur on fan remnants, structural benches, broad mesa tops and fan remnants at elevations of 4,700 to 7,400 feet. Slopes are 0 to 30 percent. These soils formed in deep eolian deposits and alluvium from sedimentary rocks. The climate is semiarid and the average annual precipitation ranges from 8 to 14 inches. The mean summer temperature is 59 to 63 degrees F. and the freeze-free period ranges from 110 to 175 days.