The moderately well drained Alcona soils, the somewhat poorly drained Richter and Robago soils, and the poorly and very poorly drained Tonkey soils form a drainage sequence with Annalake soils. Moderately well drained. Surface runoff is slow or medium. Permeability is moderate. These soils have a perched seasonal high water table at a depth of 2.5 to 3.5 feet for one month or more per year at some time from September to June in 6 or more out of 10 years.
Most areas are in woodland.
Native vegetation is red maple, sugar maple, yellow birch, balsam fir, paper birch, American basswood, eastern hemlock, and quaking aspen. A few areas have been cleared and are used for cropland or pastureland. Common crops are corn, small grain, and hay. The series is of small extent. Florence County, Wisconsin, 1995.