U.S. Department of the Interior. The Department of the Interior manages public lands and minerals, national parks, and wildlife refuges and upholds Federal trust responsibilities to Indian tribes and Native Alaskans. Additionally, Interior is responsible for endangered species conservation and other environmental conservation efforts.
Acquired November 13, 2002, this false-color image shows part of the Ouachita Mountains in southeastern Oklahoma. Acquired November 13, 2002, this false-color image shows part of the Ouachita Mountains in southeastern Oklahoma.
This region are level grasslands. They rise from 2,000 feet above sea level in the east to 4,973 feet above sea level in the west at the Black Mesa. The Oklahoma Panhandle is located in the region. This strip of land is 166 miles long and is 34 miles wide between Colorado and Kansas in the north and Texas in the south. Oklahoma Landscape and Landforms: