If the hue is 7.5YR, the chroma is 4 or less. Some pedons are mottled in shades of brown, gray, and olive. It is silty clay or clay. Structure is weak or moderate, medium or coarse, angular or subangular blocky. The 2BC or 2CB horizon has hue of 7.5YR to 2.5Y, value of 3 to 6, and chroma of 2 to 8.
Mottles are in the shades of brown, gray and olive.
Texture is silty clay or clay. The 2C horizon has hue of 7.5YR to 2.5Y, value of 3 to 6 and chroma of 2 to 8. Mottles are in shades of brown, gray and olive. Texture is silty clay or clay. The 2R horizon is hard gray limestone.