These are the competing Readlyn series and the Clyde , Kenyon , and Schley series. Floyd soils are downslope from the somewhat poorly drained Readlyn and the moderately well drained Kenyon soils, which have sola developed mostly in firm glacial till. Floyd soils are upslope from the poorly drained Clyde soils which have a solum developed mainly on erosional sediments. Floyd soils form a partial biosequence with the Schley soils, which lack a mollic epipedon. Somewhat poorly drained.
Surface runoff is slow or medium, and there is some seepage water from the adjoining higher slopes.
Permeability is moderate. Largely cropped to corn, soybeans, oats, and meadow. Native vegetation was tall prairie grasses. In southeastern Minnesota, southwestern Wisconsin, and northeastern Iowa. The soil is of large extent and is important to agriculture.