Depth to bedrock ranges from 5 to more than 10 feet. The bouldery phase has boulders on .01 to 3 percent of the surface area that are spaced 3 to 200 feet apart. Some pedons have an A horizons 3 to 6 inches thick that has hue of 10YR or 7.5YR, value of 3 or 4, and chroma of 2 to 4. The Ap horizon or A horizon is silt loam or silty clay loam. It is strongly acid to mildly alkaline.
E horizons are in some pedons.
Mottles with chroma of 2 or less are in the lower part of the Bt horizon of most pedons. The Bt horizon is silty clay, clay, silty clay loam, clay loam, or their shaly or channery analogues. Average clay content of the particle size control section ranges from 35 to 55 percent. Reaction of the Bt horizon is strongly acid to mildly alkaline. It commonly is strongly acid to slightly acid to a depth of 30 inches and medium acid to mildly alkaline below 30 inches and ranges to moderately alkaline in the BC horizon.