The soils formed in alluvium, colluvium, and residuum weathered from limestone, marl and marble. Mean annual precipitation is 7 to 12 inches. The frost-free period is about 180 to 280 days. These are the Anthony and Greyeagle soils and rock outcrop. Anthony soils are coarse-loamy and have mixed mineralogy.
Greyeagle soils have duripans and mixed mineralogy.
Used for livestock grazing and wildlife habitat. Vegetation is creosotebush, broom snakeweed, and scattered Mormon-tea. The series is of small extent.