This tunnel is immediately east of Auchendinny Viaduct and the former Auchendinny station. It is immediately west of the site of Dalmore Mill.
The line closed in 1967 and is now a foot and cycle path. It is illuminated.
Nearby stations Auchendinny Glencorse Eskbridge Rosslynlee Hospital Halt Rosslyn Castle Rosslynlee Pomathorn Halt Penicuik [2nd] Roslin Rosewell and Hawthornden Polton Loanhead Leadburn Lasswade Bonnyrigg | Auchendinny Viaduct Dalmore Mill Old Woodhouselee Tunnel Glencorse Viaduct Firth Viaduct Glencorse Tunnel Greenlaw Colliery Tin Tunnel Rosslyn Gunpowder Works Penicuik Gas Works Mauricewood Pit Tourist/other Glencorse Barracks Firth Crossing Glencorse Old Kirk Rosslynlee Hospital |
Location names in dark blue are on the same original line. |
An Illustrated History of Edinburgh's Railways | Forgotten Railways: Scotland | Old Penicuik |