Major Land Resource Areas in Mississippi

131A–Southern Mississippi River Alluvium
133A–Southern Coastal Plain
134–Southern Mississippi Valley Loess
135A–Alabama and Mississippi Blackland Prairie
151–Gulf Coast Marsh
152A–Eastern Gulf Coast Flatwoods

From Land Resource Regions and Major Land Resource Areas of the United States, the Caribbean, and the Pacific Basin (Ag Handbook 296) - This publication describes 28 land resource regions and the physiography, geology, climate, water resources, soils, biological resources, and kinds of land use in 278 major land resource areas in the United States, the Caribbean, and the Pacific Basin.