Map with: Google Map, or OS Explorer Map from Streetmap.co.uk
Go to the Main Mendip Cave Registry Search Page
Black Rock, Avon Gorge.
| NGR: | ST 56094 74610 |
| WGS84: | 51.46874, -2.63348 |
| Length: | 0 m |
| Depth: | 0 m |
| Altitude: | 25 m |
| Tags: | Artif, CROW |
| Registry: | mcr-b |
This obvious fenced-off hole is actually an artificial ventilation tunnel which connects to the Clifton Down Railway Tunnel.
Alternative Names: None recorded.
Notes: SU1 p.48
Links and Resources:
Search for this site in the MCRA Bibliography.
This entry was last updated: 2026-01-04 10:38:11
Errors or omissions in this information? Submit corrections/additions/comments for this entry to the registrars.
All database content Copyright 2026 Mendip Cave Registry and Archive.
Your use of this website is subject to the Disclaimer.
Web Registry software by Matt Voysey.