North Portal of the Mennockhass Water Tunnel
Introduction
The photograph on this page of North Portal of the Mennockhass Water Tunnel by Gordon Brown 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: © Gordon Brown Taken: 25 Jan 2010
The tunnel is stated to be 1385 metres long, cut between 1763 and 1764.