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The Ouachita Mountains (/ ˈ w ɒ ʃ ɪ t ɔː /), 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 ]
A rural Ozarks scene. Phelps County, Missouri The Saint Francois Mountains, viewed here from Knob Lick Mountain, are the exposed geologic core of the Ozarks.. The Ozarks, also known as the Ozark Mountains, Ozark Highlands or Ozark Plateau, is a physiographic region in the U.S. states of Missouri, Arkansas, and Oklahoma, as well as a small area in the southeastern corner of Kansas. [1]
These mountains are heavily forested by an oak-hickory ecosystem and less than 25% has been cleared for agriculture. [10] The Ozark National Forest, administered by the National Forest Service, preserves 1,200,000 acres (490,000 ha) of land in northwest Arkansas, including Arkansas's highest point, Mount Magazine in Mount Magazine State Park.
The 11,141-acre (45.1 km 2) Poteau Mountain Wilderness is located in the north-central range of the Ouachita mountains in Arkansas. The 6,301-acre (25.5 km 2) Dry Creek Wilderness is located in the north-central ranges of the Ouachita Mountains near Magazine Mountain. It is the state's second-smallest wilderness is known for scenic overlooks ...
The Ozark Mountain forests are a temperate broadleaf and mixed forests ecoregion of the central United States delineated by the World Wide Fund for Nature. The ecoregion covers an area of 23,900 square miles (62,000 square kilometers) in northern Arkansas and eastern Oklahoma .
The Ozark and Ouachita (pronounced Oh-Wa-Sheet-ah) Mountains rise from west to east over the state's eastern third, gradually increasing in elevation in an eastward direction. [7] [9] Oklahoma had few natural lakes. Those that did exist were either oxbow or playa lakes. Oklahoma has sixty-two oxbow lakes above 10 acres (0.040 km 2) in size.
There are three distinct mountain ranges within the U.S. Interior Highlands: The Ouachita Mountains of Arkansas and Oklahoma, which can be divided into a number of subranges including the mountains of the Arkansas River Valley (called the Frontal Ouachita Mountains); the highest point is Mount Magazine at 2,753 ft (839 m).
The Ouachita orogeny was a mountain-building event that resulted in the folding and faulting of strata currently exposed in the Ouachita Mountains. The more extensive Ouachita system extends from the current range in Arkansas and Oklahoma southeast to the Black Warrior Basin in Alabama and to the southwest through the Llano , Marathon , and ...