The 3Btb horizon has hue of 7.5YR, 5YR or 2.5YR, value of 4 or 5, and chroma of 4 to 6. Hue of 5YR or redder is in some part, and hue ranges to 10YR in the lower part. Texture is sandy clay loam, sandy loam, loam, and their gravelly analogues. Clay content averages 10 to 30 percent and sand content is 45 to 70 percent. Rock fragments, mainly gravel, range from 0 to 25 percent.
Reaction is strongly acid or very strongly acid.
These are the Bearthicket , Cidermill , Elk , Elkinsville , Olephant , Parke , Rickert , Rosine , Tobinsport , Vernonia , Wellrock , and Wellston series. Cidermill, Elk, Elkinsville, Rosine, Vernonia, Wellrock, and Wellston soils are less than 80 inches to the base of the argillic horizon. Olephant soils average less than 35 percent sand in the lower part of the series control section. Parke and Tobinsport soils have an argillic horizon that averages between 40 and 60 percent sand above 40 inches. Rickert soils have redox depletions in the lower part of the series control section.