Reaction is neutral or slightly alkaline. The Bw horizon has hue of 7.5YR or 10YR, value of 2 to 4, and chroma of 1 to 3. It is loam, sandy loam, coarse sandy loam, or gravelly or very gravelly analogs of these textures. Clay content ranges from 5 to 25 percent but typically averages less than 18 percent. Volume of rock fragments range from 10 to 40 percent.
Reaction is neutral to slightly alkaline.
The C horizon has hue of 10YR, value of 3 to 6, and chroma of 1 to 4. It is very gravelly or extremely gravelly analogs of loamy coarse sand or sand. Volume of rock fragments range from 35 to 78 percent. Reaction is slightly alkaline or moderately alkaline and carbonates are present. Rodman series is the only one in the family.