Rock fragments are primarily chert but some are angular sandstone and shale, particularly in the lower horizons. Fragments in individual horizons of the soil range from 15 to 50 percent by volume in the upper part of the solum and from 15 to 80 percent in the lower part and C horizon. The weighted average rock fragment content of the top 20 inches of the Bt horizon is 35 to 50 percent by volume. The reaction ranges from neutral to strongly acid in the upper part of the solum and is strongly or very strongly acid below about 40 inches. Lithologic discontinuities in the solum are common but are absent in some pedons.
Texture is silt loam or loam in the fine-earth fraction.
Some pedons have a thin silt loam E horizon and others have a BA or BE horizon which is less than 10 inches thick. Texture is clay loam, silty clay loam, silt loam, or loam. The weighted average clay content in the top 20 inches of the Bt horizon ranges from 27 to 35 percent. Structure is weak or moderate, fine through coarse subangular blocky or blocky. Some pedons have coarse or very coarse prismatic structure.