Overview Worn by time and nature, the Wichita Mountains loom large above the prairie in southwest Oklahoma—a lasting refuge for wildlife. Situated just outside the Lawton/Ft. Sill area, Wichita Mountains Wildlife Refuge preserves approximately 60,000 acres of mixed grass prairie, ancient granite mountains, and fresh water lakes and streams for the benefit of wildlife and the American people. Best known for its roaming herds of bison, longhorn, and Rocky Mountain elk, Wichita Mountains also o...