It has prismatic or platy structure, or it is massive. Consistence is slightly sticky and slightly plastic when wet, and firm or very firm when moist. Nahma soils have limestone bedrock within 40 inches. Peacham soils have less than 10 percent clay in the particle-size control section. Pleine, Rollaway, Sabattis, Sago, Waucedah and Witbeck soils lack dense basal till.
Burnham soils are on glaciated uplands.
Slope ranges from 0 to 3 percent. The soils formed in dense glacial till derived mainly from slate and other dark colored sedimentary and metamorphic rocks. The climate is humid and cool temperate. The mean annual temperature ranges from 38 to 44 degrees F, and mean annual precipitation ranges from 34 to 46 inches. The frost-free season ranges from 80 to 130 days.