Slope gradients range from 0 to 70 percent. The climate is continental, but is affected by Lake Superior, causing extra winter precipitation. Roscommon are wetter members of the drainage sequence with Liminga soils. Alcona and Munising soils are common associates on the moraines. Kalkaska soils are common associates on beach ridges and dunes.
Surface runoff is slow or very slow.
Permeability is rapid. Most areas are in second growth timber. The present vegetation is dominantly sugar maple, red maple, hemlock, yellow birch, quaking aspen, white birch, pin cherry, bigtooth aspen, and ironwood. Small areas are idle cropland, pasture, hayland, or tree plantations. The series is of moderate extent.