Argyle soils which have thicker A horizons, and Durand soils which have mollic epipedons are on the same landscape but are farther from drainageways. Pecatonica soils dominantly are well drained, but the range extends to moderately well drained. Surface runoff is moderate to rapid. Permeability is moderate. Pecatonica soils are used for growing cultivated crops, pasture and woodland.
Major crops are corn, soybeans, small grain and meadow.
Native vegetation was hardwood trees. The extent is moderate. Carroll County, Illinois, 1967.