The southwestern portion of the range extends into the Marathon area within western Texas.ĭue to the region’s unique tectonic situation, the Ouachita Mountains run from east to west, unlike many of the ranges located in North America. The oldest rocks in the region are located near the center of the range, by the Oklahoma and Arkansas border. During the Paleozoic era, approximately 300 million years ago, tectonic movement led to the formation of the Ouachita fold and Thrust Belt. The geological history of the land that is part of the Choctaw Nation reservation is closely intertwined with that of the Ouachita Mountains. Meanwhile, Hochatown State Park, Beavers Bend State Park, Robbers Cave State Park, and McGee Creek State Park are located within the Choctaw Nation reservation. Francis National Forest is situated to the northeast of the reservation. A majority of Ouachita National Forest lies to the east and Ozarak-St. While the reservation itself is under the management of the Choctaw Nation, it is surrounded by popular outdoor recreation areas on US federal- and state-managed land. The western foothills of the Ouachita Mountains are home to lush river valleys that lead into gentle rolling fields. The abundance of rivers and streams throughout the mountains, and the reservation, are known for their pristine qualities. The mountains are about 50 to 60 miles (90 to 95 km) long from north to south and they extend 225 miles (360 km) from east to west. The Ouachita Mountains are a dominant feature of both eastern Oklahoma and western Arkansas that extends into the Choctaw Nation reservation. Creeks and streams are common throughout the land with many headwaters starting in the Ouachita Mountains. A majority of these hills, especially in the eastern region of the reservation, are heavily forested. Much of the reservation consists of low rolling hills. Additionally, the Choctaw Nation’s reservation is divided up into 12 administrative districts. The nation’s de facto capital is at Durant while its de jure capital is at Tuskahoma.

There are eight counties within the reservation along with portions of five other counties.

km), which makes it bigger than the states and territories of Puerto Rico, Delaware, New Hampshire, Vermont, Hawai'i, Massachusetts, Connecticut, and Rhode Island. The nation’s reservation spans 10, 864 sq. The Choctaw Nation of Oklahoma (Chahta Yakni) is a federally-recognized sovereign tribal nation that’s currently headquartered in the southeastern corner of the US state of Oklahoma.

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