Ordnance Survey Rivet
Introduction
The photograph on this page of Ordnance Survey Rivet by Adrian Dust 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: © Adrian Dust Taken: 7 Jul 2013
This OS Rivet of which only the arrow remains, can be found on Bryn-henllys Bridge over the Afon Twrch. It marks a point 143.1371m above mean sea level.