| Sunset Well |
Somerset Underground Volume 4. Taviner, Robin M.. 241 2024 . MCRA 283pp, maps, illus |
| Thomas Fussell's Secret Tunnel |
Somerset Underground Volume 4. Taviner, Robin M.. 110 2024 . MCRA 283pp, maps, illus |
| Tor Street Tunnel |
Somerset Underground Volume 4. Taviner, Robin M.. 125 2024 . MCRA 283pp, maps, illus |
| Torr Works Tunnel |
Somerset Underground Volume 4. Taviner, Robin M.. 176 2024 . MCRA 283pp, maps, illus |
| Tun Bridge Well |
Somerset Underground Volume 4. Taviner, Robin M.. 221 2024 . MCRA 283pp, maps, illus |
| Tun Well |
Somerset Underground Volume 4. Taviner, Robin M.. 257 2024 . MCRA 283pp, maps, illus |
| Unnamed Holes (Bector Wood Quarry) |
Somerset Underground Volume 4. Taviner, Robin M.. 94 2024 . MCRA 283pp, maps, illus |
| Unnamed Holes (Fairy Cave Quarry) |
Somerset Underground Volume 4. Taviner, Robin M.. 80 2024 . MCRA 283pp, maps, illus |
| unnamed mine (Nailsworth) |
Cave Rescue 2023. BCRC. (297) 23 (Feb/Mar) 2024 2024 Descent. Stalactite Publishing |
| Unnamed Rift |
Somerset Underground Volume 4. Taviner, Robin M.. 61 2024 . MCRA 283pp, maps, illus |
| Vivary Park Tunnel / Police Station Tunnel |
Somerset Underground Volume 4. Taviner, Robin M.. 244 2024 . MCRA 283pp, maps, illus |
| Hunters Hole |
Cave Rescue 2024. BCRC. (303) 24 (Apr/May) 2025 2025 Descent. Stalactite Publishing |