Slopes that range from 0 to 18 percent. Ryker silt loam on a 1 percent convex slope in a cultivated field. The the depth to the base of the argillic horizon, and the depth to a lithic contact ranges from 60 to more than 80 inches. Loess thickness ranges from 20 to 40 inches. A horizons, where present, are 2 to 5 inches thick and have hue of 10YR, value of 3 or 4 and chroma of 2 or 3.
Reaction is strongly acid or very strongly acid in unlimed areas, ranges to neutral in limed areas.
It is silt loam or silty clay loam, and averages from 22 to 32 percent clay and 5 to 10 percent sand. Reaction is strongly acid or very strongly acid in unlimed areas, ranges to neutral in limed areas. It is commonly loam, silty clay loam, or clay loam and less commonly silt loam. It averages from 22 to 38 percent clay and 10 to 35 percent sand. Rock fragments range from 2 to 15 percent.