Public lands in Oklahoma

14 units whose boundary reaches Oklahoma, 6.1 million acres counted whole even where a boundary crosses into another state. 9 national wildlife refuges, 3 wilderness areas, 2 national forests and grasslands. Largest first within each type.

National wildlife refuges

All national wildlife refuges →
Refuge · USFWS
Wichita Mountains Wildlife Refuge
59,030 acres2 campgrounds near
Refuge · USFWS
Salt Plains National Wildlife Refuge
32,144 acresNational Wildlife Refuge
Refuge · USFWS
Sequoyah National Wildlife Refuge
20,938 acres4 campgrounds near
Refuge · USFWS
Tishomingo National Wildlife Refuge
16,466 acres1 campground near
Refuge · USFWS
Little River National Wildlife Refuge
14,242 acresNational Wildlife Refuge
Refuge · USFWS
Deep Fork National Wildlife Refuge
10,559 acresNational Wildlife Refuge
Refuge · USFWS
Washita National Wildlife Refuge
8,112 acresNational Wildlife Refuge
Refuge · USFWS
Ozark Plateau National Wildlife Refuge
5,006 acres4 campgrounds near
Refuge · USFWS
Optima National Wildlife Refuge
4,331 acresNational Wildlife Refuge

Wilderness areas

All wilderness areas →
Wilderness · USFS
Black Fork Mountain Wilderness
13,347 acres2 campgrounds near
Wilderness · USFS
Upper Kiamichi River Wilderness
10,372 acres3 campgrounds near
Wilderness · USFWS
Wichita Mountains Wilderness
8,570 acres2 campgrounds near

National forests and grasslands

All national forests and grasslands →
Forest · USFS
Cibola National Forest
3.2 million acres23 campgrounds near
Forest · USFS
Ouachita National Forest
2.7 million acres48 campgrounds near

Boundaries come from the agencies’ own layers. A unit is listed in every state its boundary reaches. Data refreshed September 18, 2026.