Reaction is extremely acid to strongly acid. The Bt or 2Bt horizon has hue of 10YR or 7.5YR, value of 4 or 5, and chroma of 4 to 6. Texture is silt loam, loam, silty clay loam, clay loam or their gravelly analogues. Structure is weak to strong, fine to very coarse, subangular or angular blocky, or thin or medium platy. Rock fragments range from 0 to 30 percent and generally increase with depth.
Reaction is extremely acid to moderately acid.
The 2BC horizon has hue of 10YR or 7.5YR, value of 4 or 5, and chroma of 4 to 6. Texture is coarse sandy loam, sandy loam, loam, silt loam or their gravelly or very gravelly analogues. Structure is weak, coarse or very coarse, granular, platy, or subangular blocky. Rock fragments range from 10 to 50 percent. Reaction is extremely acid to strongly acid.