Legislative History
| March 4, 1929 |
Authorized as Badlands National Monument |
| January 24, 1939 |
Proclaimed by Franklin Delano Roosevelt |
| November 10, 1978 |
Redesignated as Badlands National Park |
June 26, 1936
May 7, 1952
August 8, 1968 |
Boundary changes occurred |
| October 20, 1976 |
Wilderness designation |
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