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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, Collin Triangulation Pillar
by Rossographer
for square J2670
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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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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, Dundee Law Triangulation Pillar
by Rossographer
for square NO3931
Flush bracket bench mark on Dundee Law trig pillar.
The number on the bracket is S4607.
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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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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, Tully Triangulation Pillar
by Rossographer
for square D0002
Flush bracket bench mark on Tully hill trig pillar between Ahoghill and... (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
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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Flush Bracket, Slieve Martin Triangulation Pillar
by Rossographer
for square J2017
Flush bracket bench mark on the trig pillar on the summit of Sliabh Mártain... (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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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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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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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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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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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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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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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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Triangulation pillar at Hengistbury Head
by Malc McDonald
geograph for square SZ1790
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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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Flush Bracket, Carnmoney Hill Triangulation Pillar
by Rossographer
for square J3383
Flush bracket bench mark on Carnmoney Hill trig pillar. The mark hasn't... (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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Cannon Hill Triangulation Pillar
by Rossographer
for square H9049
The top of the trig pillar on Cannon Hill south of Loughgall. A rivet has been... (more)
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Slieve Martin Triangulation Pillar
by Rossographer
geograph for square J2017
Trig pillar on the summit of Sliabh Mártain above Rostrevor at 485m. Accessed... (more)
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Dundee Law Triangulation Pillar
by Rossographer
geograph for square NO3931
Trig pillar atop Dundee Law.
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Flush Bracket, Slieve Gullion Triangulation Pillar
by Rossographer
for square J0220
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Trig point at Wavering Down near Axbridge
by Malc McDonald
geograph for square ST4055
A triangulation pillar (or "trig point") on Wavering Down in Somerset,... (more)
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Trig point at Wavering Down near Axbridge
by Malc McDonald
geograph for square ST4055
A triangulation pillar (or "trig point") on Wavering Down in Somerset,... (more)
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Trig point at Wavering Down near Axbridge
by Malc McDonald
geograph for square ST4055
A triangulation pillar (or "trig point") on Wavering Down in Somerset,... (more)
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Squires Hill Triangulation Pillar
by Rossographer
geograph for square J3078
Trig pillar at the summit of Squires Hill above Belfast at about 379m above sea... (more)
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Tully Triangulation Pillar
by Rossographer
geograph for square D0002
Trig pillar on Tully hill between Ahoghill and Portglenone. The pillar sits in a... (more)
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Slieve Martin Triangulation Pillar
by Rossographer
geograph for square J2017
Trig pillar on the summit of Sliabh Mártain above Rostrevor at 485m. Accessed... (more)
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Squires Hill Triangulation Pillar
by Rossographer
geograph for square J3078
Trig pillar at the summit of Squires Hill above Belfast at about 379m above sea... (more)
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Carnaghliss Triangulation Pillar
by Rossographer
geograph for square J2878
Carnaghliss trig pillar located at Legoniel on the outskirts of Belfast. The... (more)
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Tully Triangulation Pillar
by Rossographer
geograph for square D0002
Trig pillar on Tully hill between Ahoghill and Portglenone. The pillar sits in a... (more)
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Centre mark at base of Dungavel Hill trig pillar
by Jim Barton
for square NS9430
I had not realised that trig pillars contain two marks fixed vertically below... (more)
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Carnaghliss Triangulation Pillar
by Rossographer
geograph for square J2878
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Flush Bracket, Carnaghliss Triangulation Pillar
by Rossographer
for square J2878
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Flush Bracket, Knocklayd Triangulation Pillar
by Rossographer
for square D1136
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Carnmoney Hill Triangulation Pillar
by Rossographer
geograph for square J3383
Trig pillar on Carnmoney Hill near Belfast. The pillar can be accessed from a... (more)
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Spider, Knocklayd Triangulation Pillar
by Rossographer
for square D1136
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Knocklayd Triangulation Pillar
by Rossographer
geograph for square D1136
Trig pillar at the summit of Knocklayd at 514m. The mountain is on the edge of... (more)
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Flush Bracket, Ailsa Craig Triangulation Pillar
by Rossographer
for square NX0199
Flush bracket bench mark on Ailsa Craig trig pillar. The pillar is at 340m and... (more)
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Slieve Gullion Triangulation Pillar
by Rossographer
geograph for square J0220
Trig pillar at the summit of Slieve Gullion. The pillar has been built directly... (more)
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Annagary Hill Triangulation Pillar
by Rossographer
geograph for square B7918
Cnoc Anagaire trig pillar above the town of Annagary, Donegal. The pillar sits... (more)
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Annagary Hill Triangulation Pillar
by Rossographer
geograph for square B7918
Cnoc Anagaire trig pillar above the town of Annagary, Donegal. The pillar sits... (more)
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