2021
G7069 : Lookout post, St John's Point
taken 4 years ago, 7 km S of Killybegs, Co Donegal, Ireland
Lookout post, St John's Point
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.