Foley soils, which occur on adjacent terraces contain a natric horizon. Calhoun, Calloway, Grenada, Hillemann and Loring soils occur on adjacent loess covered terraces. Calhoun soils contain a glossic horizon. Calloway, Grenada and Loring soils contain a fragipan. Hillemann soils contain a natric horizon.
Flooding is common.
An apparent water table is typically within 12 inches of the soil surface from December through May in undrained areas. Significant areas are forested with bottomland hardwoods. The main species are oaks and gums with occasional Cypress. The remaining acreage has been cleared and drained and used for row crops and pasture. Flood plains that drain loess covered areas or areas of mixed loess and alluvium in MLRAs 134 and 131 in the Lower Mississippi Valley of Arkansas, Louisiana, Mississippi, Missouri, and Tennessee.