These are the Nathrop and Woosley soils. Nathrop and Woosley soils have limestone at a depth above 40 inches and have mollic epipedons less than 16 inches thick. Nathrop soils are also loamy-skeletal. Native vegetation is big sagebrush, Idaho fescue, and King fescue. The series is of moderate extent.
Decross soils have a cryic temperature regime and an ustic moisture regime.