Mean annual temperature is 55 degrees F, and mean annual precipitation is 44 inches. Thickness of the solum is 60 inches or more. Depth to the 2Btb horizon ranges from 40 to 60 inches. F. The Ap or A horizon has value of 3 to 5 and chroma of 2 to 4. Dry value is 6 or more.
Reaction is neutral to moderately acid.
Some pedons have an E horizon with hue of 10YR or 7.5YR, value of 4 to 6 and chroma of 3 or 4. The Bt horizon has hue of 10YR or 7.5YR, value of 4 or 5 and chroma of 3 to 6. It is silty clay loam or silt loam. Some pedons have up to 10 percent chert gravel in the lower part of the Bt horizon and the Btx horizon. Reaction is very strongly acid to moderately acid.