Research to expand our database of disused tunnels continues to pay dividends. Many thanks to those of you who have sent in contributions - they have all made a difference. If you can help with any details, omissions or corrections, please click the 'contact us' link in the sidebar to get in touch. All information will be gratefully received.

As well as the length and the opening/closure dates, we've tried to find links to photographs or information on each of the structures. Some form part of this Relics site but most go to external pages. Hover over the 'link' icon for details; click on it to pay the page a visit. The 'Portal' links takes you to Streetmap, each one pointing to one of the tunnel's portals. If the precise location can't be identified, the area, town or city is given.

The database deliberately excludes tunnels which were opened out, either during or after the railway's period of operation. Only those that still exist - even if buried - are listed. Disused tunnels that are subsequently reopened will be highlighted in grey for a few months before being removed.

Most of the tunnels entered on this database can be located on aerial photographs by opening a .kml file in GoogleEarth. This has been developed by Antony Badsey-Ellis. It is available here as a ZIP file. Download it to your hard disk by clicking on this icon. Then extract the .kml file and open it using GoogleEarth.