Rock fragment content ranges from 2 to 25 percent by volume. Reaction is moderately acid to neutral. The 2C horizon has hue of 10YR, value of 5 or 6, and chroma of 2 or 3. It commonly is sand or gravelly sand and less commonly very gravelly coarse sand and coarse sand. Rock fragment content ranges from 10 to 50 percent.
Reaction is slightly alkaline or moderately alkaline.
The Badaxe, and Roby series may be in the same family when they are classified to the 8th Edition of Soil Taxonomy. Harbor soils have within a depth of 60 inches, subhorizons that average more than 18 percent clay. Badaxe soils have a paralithic contact within a depth of 40 inches. Roby soils contain less than 2 percent rock fragments in the argillic horizon. Bronson soils formed in loamy and sandy materials overlying loamy sand or gravelly sand deposits on outwash plains, valley trains and low lying moraines.