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Flush Bracket, Collin Triangulation Pillar
by Rossographer
for square J2670
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Flush Bracket, Ballynafoy Triangulation Pillar
by Rossographer
for square J1440
Flush bracket bench mark located on the southern side of Ballynafoy trig pillar.... (more)
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Flush Bracket, Trostan Triangulation Pillar
by Rossographer
for square D1723
Flush bracket bench mark on Trostan trig pillar. The pillar sits at 551m above... (more)
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Flush Bracket, Listullyard Fort Triangulation Pillar
by Rossographer
for square J1046
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Flush Bracket, Slieve Gallion Triangulation Pillar
by Rossographer
for square H7987
Flush bracket bench mark on Slieve Gallion trig pillar. The mark has not been... (more)
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Flush Bracket, Muldersleigh Triangulation Pillar
by Rossographer
for square J4793
Flush bracket bench mark on the Trig pillar at Muldersleigh near Whitehead.... (more)
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Flush Bracket, Ballylumford Triangulation Pillar
by Rossographer
for square D4201
Flush bracket bench mark on the Trig pillar at Ballylumford, Islandmagee.
The... (more)
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Flush Bracket, Whitish Hill Triangulation Pillar
by Rossographer
for square D4500
Flush bracket bench mark on the Trig pillar at Whitish Hill, Islandmagee.
The... (more)
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Flush Bracket, Tara Fort Triangulation Pillar
by Rossographer
for square J6248
Flush bracket bench mark on Tara Fort Triangulation Pillar.
The number on the... (more)
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Aughrim Hill Triangulation Pillar
by Rossographer
for square H9692
Trig pillar on Aughrim Hill, 2 miles west of Toome. Although close to the centre... (more)
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Aughrim Hill Triangulation Pillar
by Rossographer
for square H9692
Trig pillar on Aughrim Hill, 2 miles west of Toome. Although close to the centre... (more)
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Flush Bracket, Scald Law
by Adrian Taylor
for square NT1961
Detail of the flush bracket benchmark on the triangulation pillar on the summit... (more)
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Trostan Triangulation Pillar
by Rossographer
geograph for square D1723
Primary OSNI trig pillar on the summit of Trostan. This is the highest point in... (more)
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Trostan Triangulation Pillar
by Rossographer
geograph for square D1723
Primary OSNI trig pillar on the summit of Trostan. This is the highest point in... (more)
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Collin Triangulation Pillar
by Rossographer
for square J2670
Trig pillar on the summit of Collin Mountain to the south-west of Belfast. The... (more)
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Collin Triangulation Pillar
by Rossographer
geograph for square J2670
Trig pillar on the summit of Collin Mountain to the south-west of Belfast. The... (more)
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Ballynafoy Triangulation Pillar
by Rossographer
for square J1440
Trig pillar located in a field off the Ballynafoy Road, a few miles south of... (more)
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Killinakin Triangulation Pillar
by Rossographer
geograph for square J5161
Trig pillar located on a hill off the Killinakin Road between Killinchy and... (more)
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Trig point near Swanage
by Malc McDonald
geograph for square SZ0481
A triangulation point (or "trig point") on Ballard Down, near Swanage.... (more)
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Spider, Trostan Triangulation Pillar
by Rossographer
for square D1723
The top of Trostan trig pillar. The centre cap is missing and some erosion of... (more)
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Fort Hill Triangulation Pillar
by Rossographer
geograph for square J2056
Trig pillar in a field off the Listullycurran Road between Dromore and... (more)
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Ballynafoy Triangulation Pillar
by Rossographer
geograph for square J1440
Trig pillar located in a field off the Ballynafoy Road, a few miles south of... (more)
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Ballynafoy Triangulation Pillar
by Rossographer
geograph for square J1440
Trig pillar located in a field off the Ballynafoy Road, a few miles south of... (more)
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Triangulation pillar at Hengistbury Head
by Malc McDonald
geograph for square SZ1790
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Slieve Donard Triangulation Pillar
by Rossographer
for square J3527
Trig pillar at the summit of Slieve Donard. The pillar is situated on the top of... (more)
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Triangulation Pillar, Scald Law
by Adrian Taylor
geograph for square NT1961
Ordnance Survey triangulation pillar on the summit of Scald Law.
The flush... (more)
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Listullyard Fort Triangulation Pillar
by Rossographer
geograph for square J1046
OSNI trig pillar at Listullyard Fort, an ancient rath a few miles outside... (more)
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Slieve Foye Triangulation Pillar
by Rossographer
geograph for square J1611
Trig pillar on the summit of Slieve Foye at 589m above sea level; this is also... (more)
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Slieve Foye Triangulation Pillar
by Rossographer
geograph for square J1611
Trig pillar on the summit of Slieve Foye at 589m above sea level; this is also... (more)
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Spider, Slieve Gallion Triangulation Pillar
by Rossographer
for square H7987
The spider on Slieve Gallion trig pillar. There is some damage - probably caused... (more)
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Centre Mark, Muldersleigh Triangulation Pillar
by Rossographer
for square J4793
Centre bolt in the Trig pillar at Muldersleigh near Whitehead.
All standard... (more)
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Spider, Muldersleigh Triangulation Pillar
by Rossographer
for square J4793
The spider on the Trig pillar at Muldersleigh near Whitehead.
It is in... (more)
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Spider, Whitish Hill Triangulation Pillar
by Rossographer
for square D4500
The spider on the Trig pillar at Whitish Hill, Islandmagee.
It is in excellent... (more)
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Slemish Triangulation Pillar (remains)
by Rossographer
geograph for square D2105
Slemish trig pillar was formerly located on the summit of the mountain at... (more)
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Tara Fort Triangulation Pillar
by Rossographer
geograph for square J6248
Trig pillar at Tara Fort, a rath a few miles SE of Portaferry on the Ards... (more)
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Spider, Listullyard Fort Triangulation Pillar
by Rossographer
for square J1046
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Slieve Foye Triangulation Pillar
by Rossographer
for square J1611
Trig pillar on the summit of Slieve Foye at 589m above sea level; this is the... (more)
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Slieve Gallion Triangulation Pillar
by Rossographer
geograph for square H7987
Secondary trig pillar on the southern and highest summit of Slieve Gallion at... (more)
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Muldersleigh Triangulation Pillar
by Rossographer
geograph for square J4793
Trig pillar at Muldersleigh Hill, Whitehead. When the pillar was built this was... (more)
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Spider, Ballylumford Triangulation Pillar
by Rossographer
for square D4201
The spider on the Trig pillar at Ballylumford, Islandmagee.
It is in excellent... (more)
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Ballylumford Triangulation Pillar
by Rossographer
geograph for square D4201
Trig pillar located at Ballylumford, Islandmagee. It sits in a field off the... (more)
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Whitish Hill Triangulation Pillar
by Rossographer
geograph for square D4500
Trig pillar at Whitish Hill, Islandmagee. It sits in a field off the... (more)
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Spider, Tara Fort Triangulation Pillar
by Rossographer
for square J6248
Spider on Tara Fort Triangulation Pillar. Intact and in good condition, it is... (more)
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Ballynamuddagh Triangulation Pillar
by Rossographer
geograph for square O2815
Ballynamuddagh trig pillar on a hill between Bray Head and Greystones. The... (more)
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Ballynamuddagh Triangulation Pillar
by Rossographer
geograph for square O2815
Ballynamuddagh trig pillar on a hill between Bray Head and Greystones. The... (more)
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Cairngaver Triangulation Pillar
by Rossographer
geograph for square J4576
Triangulation pillar located on top of Cairngaver hill. The position offers... (more)
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Ganiamore Triangulation Pillar
by Rossographer
geograph for square C1140
Trig pillar at Ganiamore, the highest point on the Ros Guill peninsula above... (more)
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Spider, Ballynamuddagh Triangulation Pillar
by Rossographer
geograph for square O2815
Ballynamuddagh trig pillar on a hill between Bray Head and Greystones... (more)
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Flush Bracket, Squires Hill Triangulation Pillar
by Rossographer
for square J3078
Flush bracket bench mark on Squires Hill trig pillar.
The number on the... (more)
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Summit of Quinag, Sutherland
by Andrew Tryon
geograph for square NC2029
The OS trig point at 809m (2654ft) on the summit of Sail Gharbh, the highest... (more)
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