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Middle Atlantic Coastal Plain

Ecoregion in Atlantic Coastal Plain in SC, NC, VA, MD, DE

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The Middle Atlantic Coastal Plain ecoregion stretches from Delaware to the South Carolina/Georgia border and consists of low elevation flat plains, with many swamps, marshes, and estuaries. Forest cover in the region, once dominated by longleaf pine in the Carolinas, is now mostly loblolly and some shortleaf pine, with patches of oak, gum, and cypress near major streams, as compared to the mainly longleaf-slash pine forests of the warmer Southern Coastal Plain (75). Its low terraces, marshes, dunes, barrier islands, and beaches are underlain by unconsolidated sediments. Poorly drained soils are common, and the region has a mix of coarse and finer textured soils compared to the mostly coarse soils in the majority of Ecoregion 75. The Middle Atlantic Coastal Plain is typically lower, flatter, more poorly drained, and more marshy than Ecoregion 65. Less cropland occurs in the southern portion of the region than in the central and northern parts.

— EPA

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