| O'Neil Pass | Lawrence, SD | 44.2 miles | SE |
| Red Gate | Meade, SD | 55.4 miles | SE |
| White Gate | Meade, SD | 55.5 miles | SE |
| Jumpoff Divide | Harding, SD | 56.4 miles | NE |
| Custer Gap | Pennington, SD | 61.8 miles | SE |
| J B Pass | Harding, SD | 63.1 miles | NE |
| Summit Pass | Harding, SD | 63.6 miles | NE |
| Willard Gap | Harding, SD | 64.7 miles | NE |
| Trenk Pass | Carter, MT | 67 miles | NW |
| Reva Gap | Harding, SD | 70.2 miles | NE |
| The Gap | Campbell, WY | 74.7 miles | SW |
| Black Gap | Pennington, SD | 77.6 miles | SE |
| Craig Pass | Harding, SD | 78.3 miles | NE |
| Riley Pass | Harding, SD | 78.9 miles | NE |
| Fuller Pass | Harding, SD | 80.9 miles | NE |
| Camps Pass | Powder River, MT | 96.4 miles | NW |
| Suicide Pass | Powder River, MT | 96.8 miles | NW |
| Gobbler Pass | Custer, SD | 97 miles | SE |
| Griffin Pass | Powder River, MT | 97.7 miles | NW |
| Buffalo Gap | Custer, SD | 99.7 miles | SE |
| Cottonwood Pass | Shannon, SD | 112.8 miles | SE |
| Sage Creek Pass | Pennington, SD | 116.4 miles | SE |
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