Tag Archives: ordnance survey

Trig Pillars

Happy Birthday!

I didn’t realise our trig pillars turned 80 years old this year. Their construction began in 1936 as part of a comprehensive remapping exercise across the UK. It was a mammoth task, which resulted in 6,500 pillars being installed, often in incredibly remote and inaccessible areas. Continue reading Trig Pillars

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