The mean annual precipitation is 14 to 18 inches, most of which falls in the spring or early summer. The frost-free season is 110 to 130 days. These are the Hargreave , Butche , and Norka soils. Hargreave soils have a mollic epipedon. Butche soils have a lithic contact at a depth of 10 to 20 inches.
Norka soils have a ca horizon.
Native vegetation is needleandthread grass, western wheatgrass, blue grama, and Sandberg bluegrass. The series is of small extent.