Ouachita Mountains
Mountain range in Arkansas and Oklahoma, United States / From Wikipedia, the free encyclopedia
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The Ouachita Mountains (/ˈwɒʃɪtɔː/), simply referred to as the Ouachitas, are a mountain range in western Arkansas and southeastern Oklahoma. They are formed by a thick succession of highly deformed Paleozoic strata constituting the Ouachita Fold and Thrust Belt, one of the important orogenic belts of North America.[3] The Ouachitas continue in the subsurface to the northeast, where they make a poorly understood connection with the Appalachians and to the southwest, where they join with the Marathon uplift area of West Texas.[3] Together with the Ozark Plateaus, the Ouachitas form the U.S. Interior Highlands.[4] The highest natural point is Mount Magazine at 2,753 feet (839 m).[2][5]
Ouachita Mountains | |
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Highest point | |
Peak | Mount Magazine |
Elevation | 2,753 ft (839 m) |
Coordinates | 35°10′01″N 93°38′41″W |
Naming | |
Etymology | Choctaw for "large buffaloes"[1] or "big hunt",[1] or Caddo[2] |
Geography | |
Level III ecoregions in the region, with the Ouachita Mountains ecoregion marked as (36) (full map)
| |
Country | United States |
State | Arkansas and Oklahoma |
Parent range | U.S. Interior Highlands |
Borders on | Arkansas Valley (37), Mississippi Alluvial Plain (73), South Central Plains (35) |
The Ouachita Mountains is a Level III ecoregion designated by the Environmental Protection Agency (EPA). The region has been subdivided into six Level IV ecoregions.[6][7]