| Site Name | Area | Last Modified |
|---|---|---|
| BONE HOLE | Mendip | 11 May 2008 |
| BOS SWALLET | Mendip | 01 Jan 2005 |
| BOTTLEHEAD SLOCKER | Mendip | 23 Apr 2020 |
| BOWERY CORNER SWALLET | Mendip | 01 Jan 2005 |
| BOX MINE | The Bath Stone Mines | 12 Jul 2017 |
| BOX MINE - BACKDOOR | The Bath Stone Mines | 12 Jul 2017 |
| BOX MINE - JACK'S WORKINGS | The Bath Stone Mines | 12 Jul 2017 |
| BOX’S CAVE | Mendip | 01 Jan 2005 |
| BREWER’S QUARRY MINE | The Bath Stone Mines | 01 Jan 2005 |
| BROWNES' GROTTO | Mendip | 16 Dec 2012 |