Jemerson and Seaton soils have less than 27 percent clay in the particle-size control section. La Farge , Marseilles , and Westbend soils have a paralithic contact in the series control section. Menfro soils contain less than 7 percent sand in the lower part of the series control section. Sandview soils have more than 27 percent clay in the lower part of the series control section. Uniontown and Zurich soils have carbonates in the lower part of the series control section.
Weingarten soils have a layer in the series control section that has fragic soil properties.
Yellowriver soils have more than 7 percent sand in the upper part of the series control section. The Ruma soils are on gently sloping to steep convex summits, shoulders, and backslopes on till plains. Slope ranges from 2 to 35 percent. These soils formed in loess, or in loess and the underlying silty pedisediment. The upper loess is Peoria Silt and the lower loess is Roxana Silt.