The Blackland Prairies are a temperate grassland ecoregion named after its rich, dark soil. The main belt consists of oaklands and savannas and runs from just south of the Dallas–Fort Worth metropolitan area and encompasses the Waco area. Blackland Prairie soils once supported a tallgrass prairie dominated by tall-growing grasses such as big bluestem, little bluestem, indiangrass, and switchgrass. Because of the fertile soils, much of the original prairie has been plowed to produce food and forage crops.
Counties in the Blackland Prairie Region: Bosque, Hill, Mclennan , Limestone, Navarro, Freestone, Falls, Milam, Robertson, Leon, Madison