Forman soils have an argillic horizon. Brookings and Lismore soils have a mollic epipedon more than 16 inches thick and are in swales and shallow drainageways. The fine-silty Hidewood soils are poorly drained and are on lower parts of the landscapes. Kranzburg and Poinsett soils are fine-silty. Kranzburg and Poinsett soils are on similar landscapes.
Surface runoff is low to high.
Permeability is moderately slow. Most areas are cultivated and the main crops are corn, small grains, and alfalfa. Native grasses are big bluestem, little bluestem, needelegrass, blue grama, sideoats grama, Kentucky bluegrass, sedges, and forbs. The series is extensive. Rock County, Minnesota, 1945.