Lowry soils have a coarse-silty control section and do not have an argillic horizons and are on similar landscapes. Mobridge and Onita soils are in swales and have mollic epipedons greater than 20 inches thick. Raber soils have a fine textured control section and formed in firm, clay loam glacial till on slightly higher landscapes. Sully soils do not have mollic epipedons, have a coarse-silty control section, and typically are on steeper landscapes. Surface runoff is low on nearly level slopes and medium on more sloping areas.
Permeability is moderate.
The main crops are small grain, corn, and sorghums. Some areas are irrigated. Some areas are used as range. Native vegetation includes green needlegrass, western wheatgrass, needleandthread, blue grama, big bluestem, little bluestem, sedges, and forbs. The series is extensive.