They formed in less than 20 inches of loess and in the underlying highly calcareous loamy glacial till. Mean annual tem- perature ranges from 45 to 48 degrees F, and mean annual precipitation ranges from 28 to 33 inches. These are the Lomira and St. Charles soils and, in some places, the Markesan soils. Lomira and St. Charles soils are on more gentle slopes in the LeRoy landscape where the silt mantle is thicker. Markesan soils are next to LeRoy soils where the ochric epipedons grade to mollic.
Permeability is moderate.
Most of this soil is under cultivation. Corn, small grain, forage, and canning crops are grown. Native vegetation was mainly deciduous forests composed mainly of oak and hickory. This soil is of moderate extent. Dodge County, Wisconsin, 1974.