South portal of Perth rail tunnel.
Introduction
The photograph on this page of South portal of Perth rail tunnel. by DAVID MERSH as part of the Geograph project.
The Geograph project started in 2005 with the aim of publishing, organising and preserving representative images for every square kilometre of Great Britain, Ireland and the Isle of Man.
There are currently over 7.5m images from over 14,400 individuals and you can help contribute to the project by visiting https://www.geograph.org.uk

Image: © DAVID MERSH Taken: 6 Feb 2017
Edinburgh line emerging from the rail tunnel, southern entrance at Craigend, Perth.