2017
NS9534 : OS trig pillar on Tinto
taken 7 years ago, near to Wiston, South Lanarkshire, Scotland
OS trig pillar on Tinto
Ordnance Survey Trig Point
A triangulation station, also known as a triangulation pillar, trigonometrical station, trigonometrical point, trig station, trig beacon or trig point. Erected by the Ordnance Survey.
See Link for more details about Trig Stations.