J2875 : Divis Triangulation Pillar

taken 10 years ago, 4 km SE of Clady, Co Antrim, Northern Ireland

Divis Triangulation Pillar
Divis Triangulation Pillar
The original Divis trig pillar which, after being removed from the summit of the mountain in the early 1970s, was finally reinstated in May 2013. Prior to reinstatement it had been kept at OSNI HQ in Belfast - see J3371 : Divis Triangulation Pillar. The pillar had been sited at J2807775479 but as this site still contains communications masts it has been moved to this location which my GPS recorded as 54°36.694'N , 6°1.06'W J2805275520. Views are stunning in all directions, apart from the bits obscured by the masts to the south-east. See also J2875 : Flush Bracket, Divis Triangulation Pillar and J2875 : Spider, Divis Triangulation Pillar.
OSNI Triangulation Stations

The re-triangulation of Northern Ireland by the Ordnance Survey Northern Ireland began in 1950. This was the first complete survey of Northern Ireland which included observations with the new primary triangulation of the country, its connection with the Republic of Ireland and the cross-channel connection between Ireland and Great Britain. This began by OSNI establishing a series of triangulation stations throughout the country. Almost all of these stations were topped by trig pillars and 80, mainly primary and secondary pillars, had been constructed by October 1949. Measurements between primary stations began in 1950 and measurements for these and the secondary stations were completed by July 1956. The construction and measurements for tertiary stations were completed later (probably no later than the mid 1960s). Only two stations are not topped by pillars - Lighthouse Island, marked by a brass rivet, and Ardglass, which utilised the top of a high stone folly. The older triangulation stations on the Lough Foyle Base Line were also re-surveyed as part of this process. A majority of the stations are still extant today but a few have been removed or destroyed.

Creative Commons Licence [Some Rights Reserved]   © Copyright Rossographer and licensed for reuse under this Creative Commons Licence.
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J2875, 25 images   (more nearby search)
Photographer
Date Taken
Sunday, 13 July, 2014   (more nearby)
Submitted
Monday, 21 July, 2014
Geographical Context
Historic sites and artefacts  Uplands 
Place (from Tags)
Triangulation Station  Divis Mountain  Divis 
Subject Location
Irish: geotagged! J 28077 75536 [1m precision]
WGS84: 54:36.7075N 6:1.1037W
Camera Location
Irish: geotagged! J 28077 75536
View Direction
Northeast (about 45 degrees)
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Other Tags
Triangulation  Trigpoint  Trig Point  Trig  Triangulation Pillar  Trig Pillar  Triangulation Station  Triangulation Point  OS Trig Point  OSNI 

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