The Black Fork Mountain Wilderness now contains a total of 13,139 acres and is managed by the U.S. Forest Service. Arkansas contains approximately 8,350 acres. Oklahoma contains approximately 4,789 acres.
Public land becomes wilderness through legislation passed by the United States Congress in the form of public laws. For the Black Fork Mountain Wilderness, this process began in 1984 when 7,568 acres were designated by Public Law 98-508.