History of the trig pillar | Blog | OS
History of the trig pillar | Blog | OS
Apr 19, 2016
ordnancesurvey.co.uk
Thank you Ordnance Survey for help with my mapping and navigation around Britain. In New Galloway I came across one of the original trig points Scotland starts here! | Timmy Mallett
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Thank you Ordnance Survey for help with my mapping and navigat…
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Ever wondered what's inside a trig pillar? 💡 Like an iceberg, there is more below the surface than above it. This is the standard design that trig points were built to during the retriangulation of Britain. | Ordnance Survey
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Ever wondered what's inside a trig pillar? 💡 Like an iceberg, there is m…
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5.7K views · 53 reactions | Ordnance Survey's award winning OS Maps is now even better, with the new Aerial 3D layer | Ordnance Survey | Facebook
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