These soils formed in clayey flood basin deposits on alluvial plains or deltas of the Pleistocene age Beaumont Formation. Mean annual precipitation ranges from 50 to 60 inches, and mean annual temperature ranges from 70 to 72 degrees F. Frost free days range from 250 to 270 days. Elevation ranges from 10 to 40 feet above sea level. The Thornthwaite P-E index is 68 to 80. These include the competing Beaumont and League soils and the Labelle , Morey , and Viterbo soils.
Beaumont soils are slightly lower in the landscape.
League soils are on similar positions. Viterbo soils are on slightly lower positions, are more alkaline, and have a argillic horizon. Labelle and Morey soils are slightly higher in the landscape and have an argillic horizon. Somewhat poorly drained. Runoff is low.