| Engine Gap | | | Roan-Unaka Mountains |
| Devil Fork Gap | | | Bald Mountains |
| Toms Gap | 841 m | | Eastern Great Smoky Mountains |
| Lawson Gant Lot | 1396 m | | Western Great Smoky Mountains |
| Sled Runner Gap | | | Unicoi Mountains |
| Scott Gap | | | Western Great Smoky Mountains |
| Abrams Gap | 365 m | | Western Great Smoky Mountains |
| Meadow Gap | 1484 m | | Western Great Smoky Mountains |
| Powder Springs Gap | | | Clinch Mountain Complex |
| Caylor Gap | 715 m | | Western Great Smoky Mountains |
| Indian Gap | 1641 m | | Central Great Smoky Mountains |
| Carr Gap | | | Cumberland-Stone Mountain |
| Hogjaw Gap | | | Unicoi Mountains |
| Parker Gap | | | Cumberland-Stone Mountain |
| Clay Gap | | | Southern Cumberland Mountains |
| Doll Flats | | | Roan-Unaka Mountains |
| Trillium Gap | 1438 m | | Eastern Great Smoky Mountains |
| Dosey Gap | 550 m | | Western Great Smoky Mountains |
| Grassy Gap | | | Unicoi Mountains |
| Deep Gap | 893 m | | Bald Mountains |