Modern map-making has meant trig pillars are no longer used for surveying, but they still act as a beacon for ramblers. Did you know with a Digital Subscription to The Star, you can get unlimited ...

Ordnance Survey (OS) is celebrating the 80th anniversary ... his 2015 book The Road to Little Dribbling. This is Worcester Beacon trig pillar at sunset, photographed by Dan Grant.

One read: “OS surveying teams spent ... to the point where the traditional trig pillar is now obsolete in its original guise. “They still act as a beacon for many an outdoors lover, but ...

These much-loved structures are often found on hill tops acting as a beacon for ramblers. The Ordnance Survey’s first trig point was erected on 18 April 1936 near Cold Ashby in Northamptonshire.

In 1936, the Ordnance Survey began to construct concrete triangulation pillars, or trig points, to aid accurate measurement and map-making using the principles of trigonometry. By 1962 ...

Of course, measuring angles by eye from a trig pillar was dependent upon good visibility. The carrying of heavy surveying equipment to a mountain top was an arduous task, often requiring the aid ...

Ordnance Survey (OS) is celebrating the 80th anniversary ... his 2015 book The Road to Little Dribbling. This is Worcester Beacon trig pillar at sunset, photographed by Dan Grant.