THE UNITED STATES 



SOII.CON8KRVATION SBHVH'.K 



Northern Black Soils. 

 Central Black Soils. 

 Southern Black Soils. 

 Northern Prairies. 

 Central Prairies. 



23 Western Great Lakes. 28 Piedmont 



24 Central Great Lakes. 29 Uppr Coastal Plain 



25 Ozark Ohio-Tennessee River Valleys. 30 Swampy Coastal Plain. 



26 Northern Great Lakes- St Lawrence. 31 South. Central Florida. 



27 Appalachian. 32 Subtropical Florida. 



Map prepared by Cartographic Drafting Unit 



