Elevations are 600 to 1,800 feet. The frost free period is 90 to 140 days. These are the Croswell , Kalkaska , Kinross , Roscommon , and Rubicon soils. Somewhat poorly drained. May. The soil is saturated for a period of 70 to 90 days when the soil temperature is above 5 degrees C. Potential surface runoff is negligible or very low.
Permeability is rapid or very rapid.
Only a small part is cultivated. Some areas are in permanent pasture and others are used for growing special crops such as blueberries and cucumbers. Many areas are in various stages of reforestation. Natural forests are northern white-cedar, balsam fir, hemlock, yellow birch, paper birch, aspen, and red maple. Northern Lower Peninsula and Upper Peninsula of Michigan, Minnesota, Wisconsin, New York, Vermont, New Hampshire, and Massachusetts.