The soils underlain by limestone are on benches in adjacent glacial drainageways. Well drained and moderately well drained. Surface runoff is slow to medium. Permeability is moderately rapid. The larger percentage of Chatham soils is used for woodland.
Northern hardwoods are dominant.
The smaller percentage is used for general farming, or is idle. Small grain and hay are the major crops. Central part of the Upper Peninsula of Michigan. Alger County, Michigan, 1929. The high reaction of the B horizon raises some doubt as to the designation of this horizon as a spodic horizon.