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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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Scudion Craig Passive GPS Station
by Rossographer
for square C8938
Small brass rivet (on the right) on top of Scudion Craig Triangulation Pillar... (more)
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Scudion Craig Triangulation Pillar
by Rossographer
geograph for square C8938
OSNI trig pillar located off the Ballyhome Road about one mile south-east of... (more)
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Cannon Hill Triangulation Pillar
by Rossographer
geograph for square H9049
Trig pillar on Cannon Hill south of Loughgall and adjacent to the Castledillon... (more)
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Cannon Hill Triangulation Pillar
by Rossographer
geograph for square H9049
Trig pillar on Cannon Hill south of Loughgall and adjacent to the Castledillon... (more)
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Flush Bracket, Cuilcagh Triangulation Pillar
by Rossographer
for square H1228
Flush bracket bench mark on Cuilcagh trig pillar at the summit of the mountain.... (more)
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Cuilcagh Triangulation Pillar
by Rossographer
geograph for square H1228
Cuilcagh trig pillar at the summit of the mountain. A OSNI primary triangulation... (more)
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Cuilcagh Triangulation Pillar
by Rossographer
for square H1228
Cuilcagh trig pillar at the summit of the mountain. A OSNI primary triangulation... (more)
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Flush Bracket, Divis Triangulation Pillar
by Rossographer
for square J2875
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Spider, Black Mountain North Triangulation Pillar
by Rossographer
for square J2974
Detail of the 'spider' on Black Mountain North Triangulation Pillar... (more)
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Flush Bracket, Ballywhite Triangulation Pillar
by Rossographer
for square J5852
Flush bracket bench mark on Trig pillar Ballywhite Triangulation Pillar.
The... (more)
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Flush Bracket, Casaeldona Triangulation Pillar
by Rossographer
for square J3771
Flush bracket bench mark located on the Casaeldona Triangulation Pillar.
The... (more)
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Flush Bracket, Carninard Triangulation Pillar
by Rossographer
for square J3198
Flush bracket bench mark on Carninard trig pillar.
The number on the bracket... (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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Binevenagh Triangulation Pillar
by Rossographer
geograph for square C6930
The top of Binevenagh trig pillar looking down over the Roe Valley and Lough... (more)
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Flush Bracket, Binevenagh Triangulation Pillar
by Rossographer
for square C6930
Flush bracket bench mark on Binevenagh trig pillar.
The number on the... (more)
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Flush Bracket, Cannon Hill Triangulation Pillar
by Rossographer
for square H9049
Flush bracket bench mark on Cannon Hill trig pillar.
The number on the... (more)
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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, 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, Knocklayd Triangulation Pillar
by Rossographer
for square D1136
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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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Isabella's Tower, Ardglass
by Rossographer
geograph for square J5536
Isabella's Tower on a hill on the southern edge of Ardglass. After... (more)
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Spider, Sawel Triangulation Pillar
by Rossographer
for square H6197
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Flush Bracket, Sawel Triangulation Pillar
by Rossographer
for square H6197
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Sawel Triangulation Pillar
by Rossographer
geograph for square H6197
Primary OSNI Trig pillar at the summit of Sawel in the Sperrins. The summit is... (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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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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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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Flush Bracket, Slieve Gullion Triangulation Pillar
by Rossographer
for square J0220
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Isabella's Tower, Ardglass
by Rossographer
for square J5536
Isabella's Tower on a hill on the southern edge of Ardglass. This is the... (more)
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Isabella's Tower, Ardglass
by Rossographer
geograph for square J5536
Isabella's Tower on a hill on the southern edge of Ardglass. I... (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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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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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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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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Spider, Scudion Craig Triangulation Pillar
by Rossographer
for square C8938
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Flush Bracket, Scudion Craig Triangulation Pillar
by Rossographer
for square C8938
Flush bracket bench mark located on Scudion Craig Triangulation Pillar... (more)
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Flush Bracket, Slievenaslat Triangulation Pillar
by Rossographer
for square J3337
Flush bracket bench mark on the trig pillar at Slievenaslat in Castlewellan... (more)
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Flush Bracket, Black Mountain South Triangulation Pillar
by Rossographer
for square J2873
Flush bracket bench mark on Black Mountain South Triangulation Pillar.
The... (more)
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Spider, King's Ring Triangulation Pillar
by Rossographer
for square H9634
The top and spider on King's Ring trig pillar which is located on farmland... (more)
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Flush Bracket, King's Ring Triangulation Pillar
by Rossographer
for square H9634
The flush bracket bench mark on King's Ring trig pillar which is located on... (more)
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Divis Triangulation Pillar
by Rossographer
geograph for square J2875
The original Divis trig pillar which, after being removed from the summit of the... (more)
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Flush Bracket, Lyles Hill Triangulation Pillar
by Rossographer
for square J2482
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Flush Bracket, Slieve Croob Triangulation Pillar
by Rossographer
for square J3145
Flush bracket bench mark on Slieve Croob Triangulation Pillar.
The number of... (more)
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Spider, Slieve Croob Triangulation Pillar
by Rossographer
for square J3145
The top of the Slieve Croob trig pillar. Although well worn it is marked... (more)
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Flush Bracket, Slieve Donard Triangulation Pillar
by Rossographer
for square J3527
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Flush Bracket, Portstewart
by Rossographer
for square C8138
Flush bracket bench mark, it is located on Agherton Parish Church, Portstewart... (more)
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Flush Bracket, Collin Triangulation Pillar
by Rossographer
for square J2670
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