Some pedons have a BC horizon that has the same color, and reaction ranges as the Bt. It is commonly clay loam or loam, and less commonly gravelly clay loam or sandy loam. Chromas of 1 or 2 are thought to be relict and not considered redox features. Texture is commonly loam, clay loam, and less commonly, sandy loam or gravelly analogues of these textures. Rock Fragment content by volume averages about 5 percent and ranges from 2 to 20 percent.
Reaction is moderately acid to moderately alkaline.
Carbonate content ranges from 0 to 25 percent. Amanda soils have rock fragments in the series control section dominated by sandstone and shale. Clifty Creek soils average more than 35 percent clay in the lower part of the series control section. Crouse soils have solum thickness greater than 80 inches when modern and buried soil are combined. Kidder, Senachwine and Strawn soils are less than 40 inches to the base of the argillic horizon.