The Bk or Bw horizon has hue of 2.5YR to 10YR, value of 3 to 6, and chroma of 1 to 6. Reaction ranges from slightly acid to moderately alkaline. Visible calcium carbonate in the form of masses and films ranges from 0 to 5 percent by volume. The C horizon has hue of 2.5YR to 7.5YR, value of 3 to 6, and chroma of 1 to 6. Thin strata of coarser or fine textures occur in this horizon.
Reaction is moderately alkaline and calcareous.
Visible calcium carbonate in the form of masses and films ranges from 0 to 5 percent by volume. Some pedons have buried horizons below 30 inches. These pedons are not diagnostic. Texture, color, and reactions of these horizons are similar to those described throughout the Port profile. Soils in similar families are Asher , Bippus , Bosque , Dale , Frio , Gageby , Gowen , Kaski , Lamkin , Lawrie , Nipsum , Reinach , and Spur series.