Menfro, Mentor, and Yellowriver soils have free carbonates at depths greater than 40 inches. Palsgrove, Sandview, Weingarten and Westmore soils have more than 35 percent clay in the lower part of the control section. In addition, Palsgrove soils have a lithic contact in the lower part of the control section. Uniontown soils have redoximorphic features in the middle part of the control section. Westbend soils have a paralithic contact within a depth of 60 inches.
Sylvan soils are on convex side slopes on till plains and risers on stream terraces.
Slopes range from 2 to 60 percent on till plains and from 2 to 10 percent on the stream terraces. Sylvan soils formed in 5 to more than 20 feet of calcareous loess. These are Fayette , Menfro , Bold , Hamburg , Hickory , Iona , Rozetta , and Timula soils. The Bold and Timula soils average less than 18 percent clay in the particle-size control section, and are on similar landforms. The Fayette, and Menfro soils are on nearby landforms typically upslope, and have free carbonates at depths greater than 40 inches.