 In the same way, the Upland South usually does not include parts of some Upper South states, such as the Mississippi embayment (which includes eastern Arkansas, the Missouri Bootheel, the Purchase area of Kentucky, and part of West Tennessee), and the coastal lowlands of North Carolina, Virginia, and Maryland.Despite these differences, the two terms, Upland South and Upper South, refer to the same general region—the northern part of the American South—and are frequently used synonymously.The corresponding terms, Lower South and Deep South, similarly refer to the same general region to the south of, and lower in elevation, than the Upland or Upper South.