The Taumsauk series consists of shallow and very shallow, somewhat excessively drained, moderately permeable soils on upland glade areas. These soils formed in colluvium or residuum weathered from rhyolite or felsite.
Permeability is moderate.
Slopes range from 8 to 35 percent. Mean annual temperature is 56 degrees F, and mean annual precipitation is 42 inches. Ironton quadrangle, lat. Thickness of the solum and depth to hard rock ranges from 4 to 20 inches. Stones, boulders and associated rock outcrop occupy from 0.1 to 50 percent of the soil surface.