Reaction typically ranges from extremely acid to slightly acid but ranges to neutral, where the soil is limed. The Bw horizon has hue of 10YR or 7.5YR, value of 4 to 6, and chroma of 3 to 6. Horizons with spodic colors have pH greater than 5.9 or have less than 0.6 percent organic carbon. Reaction typically ranges from very strongly acid to slightly acid but ranges to neutral, where the soil is limed. It is sand, fine sand, or the channery analogs.
Reaction ranges from very strongly acid to slightly acid.
Boone soils typically have a Cr horizon of sandstone with colors like the C horizon described above. These are the Carver , Hooksan , Tarr , and Tint series. Related soils are the Plainbo and Twinmound series. None of these soils except Plainbo and Twinmound have a paralithic contact within 60 inches. Plainbo soils have 10 percent or more weatherable minerals in the particle-size control section.