Thackley tunnel air shaft
Introduction
The photograph on this page of Thackley tunnel air shaft by philld 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: © philld Taken: 20 Jun 2009
A rare feature in a disused railway tunnel are open air shafts. Shafts of mystical light still descend into the depths of Thackley tunnel from the world above. Thackley tunnel has four open shafts that radiate this 'Holy grail' superb effect. These ventilation shafts were constructed to allow the smoke to clear from passing steam trains. See many more internal pictures of Thackley tunnel here http://www.flickr.com/photos/phill_dvsn/sets/72157620012526176/detail/