Mean annual precipitation is 8 to 12 inches. There are the Ayar , and Bluestone soils. Ayar soils have a color value, moist, less then 3.5 and a value dry, less than 5.5 in the upper surface horizon. Bluestone soils have a lithic contact at a depth of 10 to 20 inches. Used for rangeland, watershed, and wildlife.
Vegetation is annual grasses, and forbs.
MLRA is 15. The soils are of small extent. Kern County, Northwestern Part, California 1982.