Farnuf, Lefor, Morton, Reeder, and Yegen are on similar landscapes. Arnegard soils are in swales, do not have argillic horizons, and have mollic epipedons greater than 16 inches thick. Morton soils have bedrock between a depth of 20 to 40 inches and are on similar landscapes. Ridgeview soils are on flats and are fine throughout the profile. Runoff is low on 0 to 2 percent slopes and medium on 2 to 15 percent slopes.
Permeability is moderate in the upper portion of the profile and slow in the lower portion.
These soils are cultivated and the principal crops are wheat, oats, hay, and pasture. Native vegetation is western wheatgrass, green needlegrass, blue grama, needleandthread, and sedges. The series is of small extent. Perkins County, South Dakota, 1977.