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The North American Mississippi Valley Loess Plains are a Level III ecoregion designated by the Environmental Protection Agency (EPA) in six U.S. states. The region lies primarily on the eastern border of the Mississippi Alluvial Plain , from the Ohio River in western Kentucky, through Tennessee and Mississippi, to Louisiana.
The Mississippi Alluvial Plain is a Level III ecoregion designated by the Environmental Protection Agency (EPA) in seven U.S. states, though predominantly in Arkansas, Louisiana, and Mississippi. It parallels the Mississippi River from the Midwestern United States to the Gulf of Mexico .
WWF freshwater ecoregions which overlap the Southeastern Plains are Temperate upland rivers – Tennessee (152); Temperate floodplain rivers and wetlands – Lower Mississippi (149), Mobile Bay (153), and Apalachicola (155); Temperate coastal rivers – West Florida Gulf (154), Appalachian Piedmont (157), and Chesapeake Bay (158); Tropical and ...
In the United States, the EPA and the United States Geological Survey (USGS) are the principal federal agencies working with the CEC to define and map ecoregions. Ecoregions may be identified by similarities in geology, physiography, vegetation, climate, soils, land use, wildlife distributions, and hydrology.
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Added the remaining four U.S. territories and added two missing ecoregions on the mainland, per WWF definitions. Renumbered each ecoregion based upon their biogeographic realms (Nearctic first, then Neotropical and Oceanian) and biomes. Changed colours of a couple ecoregions. 08:38, 20 November 2020: 1,712 × 1,992 (1.17 MB) Ponderosapine210
Pages in category "Ecoregions of the United States" The following 137 pages are in this category, out of 137 total. ... Mississippi Alluvial Plain (ecoregion)