Mississippi Valley Loess Plains (ecoregion)

Mississippi Valley Loess Plains
Satellite imagery of the Mississippi Valley Loess Plains
Map
Mississippi Valley Loess Plains ecoregion
Ecology
RealmNearctic
BiomeTemperate broadleaf and mixed forests
Borders
Geography
Area48,834 km2 (18,855 sq mi)
CountryUnited States
States
  • Kentucky
  • Missouri
  • Tennessee
  • Arkansas
  • Mississippi
  • Louisiana
Coordinates33°N 90°W / 33°N 90°W / 33; -90
GeologyIrregular plains and hills with thick loess deposits
Climate typeHumid subtropical

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. A separate unit that includes Crowley's Ridge occurs west of the river in Arkansas and Missouri.[1] It has been divided into four Level IV ecoregions.

  1. ^ "Level III and IV Ecoregions of the Continental United States". United States Environmental Protection Agency. 2015-11-25. Retrieved 2024-03-11.