Trig Pillars
Trig pillars are one of the most recognisable features of the British landscape. Built to help map the country with extraordinary accuracy, they have since become landmarks for walkers, photographers and a new generation of ‘Trig Baggers’
The Ultimate (and Totally Unofficial) Trig Etiquette Guide!
Don't be a Trig Hogger: a definitive and completely unofficial guide to practicing good Trig etiquette
Top Trigs – What’s Your Favourite Trig Point in the UK?
What's Your Favourite Trig Point? Our OS Champions have been sharing their Top Trigs, which is yours and why send in a pic of your favourite Trig!
Trig Pillar Quiz
How much do you know about trig pillars, those mysterious obelisks dotting the British landscape? Try this tricky trig pillar quiz and prove your triangulation knowledge
What is a Trig Pillar or Trig Point ?
The trig pillar was first used in the retriangulation of Great Britain on 18 April 1936. With over 6500 built, they were vital in map making. Here's everything you need to know about trig pillars including 10 great trig point walks.