| Name |
County |
| Big Hole National Battlefield |
Beaverhead County |
| Bighorn Canyon National Recreation Area |
Big Horn County |
| Fort Union Trading Post National Historic Site |
Williams |
| Glacier National Park |
Flathead County |
| Grant-Kohrs Ranch National Historic Site |
Powell County |
| Little Bighorn Battlefield National Monument |
Big Horn County |
| Nez Perce National Historical Park |
Ravalli |
| Pompeys Pillar National Monument |
Yellowstone County |
| Upper Missouri River Breaks National Monument |
Fergus County |
| Yellowstone National Park |
Park |
