Mount Maw. Every one of these O/S pillars - across the UK - has been cast in situ using plywood formers, sand, gravel and cement carried to the hilltop by the O/S surveyors responsible for the installation. Their deep foundations have ensured their longevity in adverse weather.
Uploaded to Geograph by Anthony O'Neil on 1 September 2015
Photo © Anthony O'Neil, 1 September 2015. Licensed for reuse under this Creative Commons licence