Textures of the BC horizon are the same as those in the Bs horizons. Reaction ranges from moderately acid to neutral. Some pedons have a 2BC horizon. The 2C horizon has hue of 7.5YR or 10YR, value of 5 to 7, and chroma of 3 or 4. It is stratified very gravelly sand, gravelly sand, extremely gravelly sand, coarse sand, or sand.
Reaction is neutral to moderately alkaline.
Duel and Ishpeming soils are underlain by bedrock at a depth of 20 to 40 inches. Fernlake soils do not have carbonates with the control section. Hartwick soils contain less than 25 percent gravel below 40 inches. Karlin, Rousseau, Rubicon, and Vilas soils have less than 15 percent gravel in the series control section. Missisquoi and Sayner soils do not have carbonates within the control section.