H9692 : Aughrim Hill Triangulation Pillar

taken 2 years ago, 3 km from Toome, Co Antrim, Northern Ireland

Aughrim Hill Triangulation Pillar
Aughrim Hill Triangulation Pillar
Trig pillar on Aughrim Hill, 2 miles west of Toome. Although close to the centre of Northern Ireland, the pillar is very low at only 30 metres above sea level. Almost lost in the vegetation, I was pleasantly surprised that the pillar is still here at all - I thought that it had been destroyed during the building of the new A6 road H9692 : The A6 near Toome as the field it is in was completely obliterated during the construction; luckily someone must have noticed the pillar and had left it alone at the edge of the field. The flush bracket - OSNIBM 3028 - is inaccessible, but this is the top of the pillar which is slightly damaged but intact. See also H9692 : Aughrim Hill 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.

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H9692, 5 images   (more nearby search)
Photographer
Date Taken
Wednesday, 3 August, 2022   (more nearby)
Submitted
Thursday, 4 August, 2022
Geographical Context
Historic sites and artefacts 
Primary Subject of Photo
Trig Point 
Subject Location
Irish: geotagged! H 96559 92192 [1m precision]
WGS84: 54:46.1018N 6:30.0302W
Camera Location
Irish: geotagged! H 96559 92192
View Direction
Southeast (about 135 degrees)
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Image Type (about): close look 
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