The Higginsville soils are on side slopes below the Sibley soils, and Macksburg soils are in saddles and broad gently sloping areas between areas of Nebo soils. Knox soils do not have a mollic epipedon. Sharpsburg soils are fine and have a mollic epipedon less than 24 inches thick. Knox and Sharpsburg soils are on similar landscapes. Runoff is medium to moderately rapid.
Permeability is moderate.
Soils are cropped to corn and soybeans. Native vegetation was tall prairie grasses. West-central Missouri along the Missouri River. The series is of large extent. Jackson County, Missouri, 1982.