The Arkansas Delta is one of the six natural regions of the state of Arkansas. Willard B. Gatewood Jr., author of The Arkansas Delta: Land of Paradox, says that rich cotton lands of the Arkansas Delta make that area "The Deepest of the Deep South."
The region runs along the Mississippi River from Eudora north to Blytheville and as far west as LittleRock. It is part of the Mississippi embayment, itself part of the Mississippi Alluvial Plains Region. The flat plain is bisected by CrowleysRidge, a narrow band of rolling hills rising 250 to 500 feet (76 to 152 m) above the flat delta plains. Several towns and cities have been developed along Crowley's Ridge, including Jonesboro. The region's lower western border follows the Arkansas River just outside Little Rock down through PineBluff. There the border shifts to BayouBartholomew, stretching south to the Arkansas-Louisiana state line.
While the Arkansas Delta shares many geographic similarities with the MississippiDeltaRegion, it is distinguished by its five unique sub-regions: the St. Francis Basin, Crowley's Ridge, the WhiteRiverLowlands, the Grand Prairie and the Arkansas River Lowlands (also called "the Delta Lowlands"). Much of the region is within the MississippiLowlandForestsRegion ecoregion.
