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.
acquired November 13, 2002 download large image (4 MB, JPEG, 3076x2307) Prairies stretch across much of Oklahoma, but the state also holds mountain ranges, including the Ouachita Mountains in the southeastern corner. Formed over 300 million years ago, these mountains are a highly eroded remnant of a much larger range, one that may have stretched from Texas into southeastern Canada.