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U.K. and Ireland Trigpoints
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Description:
All survey marks or objects used by the UK Ordnance Survey, Ordnance Survey Northern Ireland (OSNI)
PLEASE NOTE, THERE IS A FACILITY TO SUGGEST CHANGES TO WAYMARKS, THE UK WAYMARKERS WOULD PREFER IF YOU EMAILED THEM DIRECT IF ANY CHANGES TO THEIR WAYMARKS ARE NEEDED. THANK YOU.

choose your Region from approved UK Region Map

Expanded Description:
All survey marks or objects used by the UK Ordnance Survey, Ordnance Survey Northern Ireland (OSNI) Ordnance Survey Ireland (OSI)& EA Environment Agency. Can include Cut bench marks, Rivets, Flush Brackets, Trig pillars in fact any point used and recorded by ordnance survey, OSNI or OSI. This category can include Triangulation Stations placed by the Admiralty Hydrographic Department that feature on various points around the UK coast. Can also include EABM (Environment Agency Bench Mark). Trigpoints are the common name for "triangulation pillars". These are concrete pillars, about 4' tall, which were used by the Ordnance Survey in order to determine the exact shape of the country. They are generally located on the highest bit of ground in the area, so that there is a direct line of sight from one to the next. By sitting a theodolite (an accurate compass built into a telescope) on the top of the pillar, accurate bearings to nearby trigpoints could be taken.
This category also includes any confirmed other Ordnance Survey marks such as cut bench marks, O/S tide markers, OS rivets, OS bolts, Fundamental bench marks, surface blocks, Berntsen's, blocks, passive and active GPS active stations and flush bracket's on constructions other than trig pillars. Many cut bench marks can be researched on www.old-maps.co.uk (1890's OS maps) which show their exact location and height. If you know of any other easily accessible resources please let group know.

EABM's are placed by the Environment Agency

Related and other useful sites.

www.trigpointinguk.com (OSGB36)

OS benchmarks (OSGB36)

Bench-marks.org.uk non trig pillar marks

Yahoo trig group Membership needed.

TrigTools.co.uk Co-ordinate conversion

MSN OSBM group (OSGB36)

www.nearby.org.uk (variety of datums) Co-ordinate conversions

OS map of Active Stations (OSGB36)

Waymarking.com uses WGS84 datum. Other sites use other datums.


Here are definitions of common OS marks.
OSBM BOLT "OSBM Bolt" is quite large - an inch or two in diameter (25 - 50mm) (sizes vary), with letters "O S B M" and an arrow engraved into the Bolt itself.(Some of the older ones have no markings.) Bolt
1GL BOLT or PA BOLT1GL BOLT or PA BOLT is a cut mark with a small bolt. The bolt can be next to the cut benchmark or in the apex. 1GL BOLT or PA BOLT
CUT BENCHMARK A cut mark in stone/brick. Some have been found upside-down. CUT BENCHMARK
RIVET WITH CUT BENCHMARK. A rivet is a small round headed bolt no more than half and inch (12mm) in diameter. They are situated ABOVE a cut benchmark. RIVET WITH CUT BENCHMARK
FUNDAMENTAL BENCHMARK. These are about a foot high (30 cm) with a large bolt on top, with a metal plaque. Worth noting also is that some standard FBMs have been cut down to ground level. Some of these have a new bolt on top, but not all. FUNDAMENTAL BENCHMARK
FLUSH BRACKET. These can be found on trig pillars, buildings, bridges etc. They all have an individual number, which you should log. FLUSH BRACKET
SURFACE BLOCK. A rivet set in a concrete base about 6 inches across (15cm) flush at ground level. SURFACE BLOCK
RIVET AND BENCHMARK (OLD STYLE) I have been told that it is the old style of rivet. It is like a headless nail which has been driven into the granite. The top of the stump protrudes out of the rock by about a quarter of an inch (6mm). The only place I have found one is on Dartmoor, where there are several. RIVET AND BENCHMARK (OLD STYLE)
PIVOT BENCH MARKS. A benchmark which has an empty hole above it. There is no horizontal mark. PIVOT BENCH MARKS
PROJECTING BRACKET. These brackets are the predecessor to the Flush Bracket. 258 listed on OSBM. PROJECTING BRACKET
BERNTSEN. Visible is a metal circular lid about 6 inches across (15cm) at ground level, covering a brass bolt. BERNSTEN
CURRY STOOL is a horizontal concrete tripod at ground level with arms about 3 feet (1m) long & a centre stud. 9 known in the UK. CURRY STOOL
BLOCKS. These are similar to a surface block, often replacing (and made from the remains of) a destroyed trig pillar. 17 known in the UK.
WM8CME is one
BLOCKS
ACTIVE STATIONS contain a GPS receiver antenna and sometimes meteorological instruments. Active Station Map. (Not publicly listed by OS.) Find an Active Station. Active
CONCRETE RING with a centre stud. 2 feet (55cm) diameter. 6 known in the UK. CONCRETE RING
(The pictures below have been borrowed from T:UK which will be replaced with our own waymarking photos when the objects have been submitted. If you are submitting any of the objects please could you let a manager know.)
FENOMARK. 10 of these are known in the UK. FENOMARK
CENTRE is a small cross engraved in metal. There are 2 known in the UK. CENTRE
GRAVITY FBM. Similar to a standard FBM, but bigger, and with a flush bracket. 4 known in the UK. GRAVITY FBM
BURIED BLOCKS 5 known. Like Surface Blocks but roughly one to two feet underground. (No photos in Waymark database yet.)
SPIDER. There are 6 left in the UK. They are similar to the spider on top of standard trig pillar, but placed elsewhere. e.g. in a wall (No photos in Waymark database yet.)
There are ANOMILIES. A raised block without Flush Bracket but with OSBM bolt under a trap door. Irish Pillar
Other survey marks.
ADMIRALTY HYDROGRAPHIC DEPARTMENT LEVEL MARKER. These markers are flat and about 6 inches across (15cm) , set in rock. ADMIRALTY HYDROGRAPHIC DEPARTMENT LEVEL MARKER
EABM (Environment Agency Bench Mark)EABM (Environment Agency Bench Mark)EABM (Environment Agency Bench Mark)

Instructions for Posting a U.K. and Ireland Trigpoints Waymark:
This category requires a CLOSE-UP photo of the OS object and a photo of the object with the general area taken by the waymarker.

When a trig is waymarked 2 photos are required, the trig and one of the flush bracket.

Most waymarkers submit two photos one close up of the object and one a little further away. The object must be recognizable in the photos.

Please ensure you complete both the short and long descriptions including street names if appropriate, nearest hamlet, village or town and County. (If these are not completed then your submission will be rejected.) Postcode is a bonus.

Ensure all Flush Bracket numbers are entered in the appropriate field.

Instructions for Visiting a Waymark in this Category:
A photo should be taken when you visit, and added to the log.
Category Settings:
  • Waymarks can be added to this category
  • New waymarks of this category are reviewed by the category group prior to being published
  • Category is visible in the directory
Variables:
  • Type of Trigpoint
  • Condition
  • Number on Flush Bracket
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Currently displaying U.K. and Ireland Trigpoints

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Total Records: 6683 Page: 1 of 268 prev<<<[12345678910]>>>next
Image for Cut Bench Mark - Malmesbury Road, London, UKview gallery
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U.K. and Ireland TrigpointsCut Bench Mark - Malmesbury Road, London, UK

in U.K. and Ireland Trigpoints

This mark is cut into brickwork of a pedestrian foot tunnel, leading under railway lines, from Malmesbury Road to Mostyn Grove. The mark is at the southern end of the tunnel on the west side.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 2/21/2017

last visited: never

Image for Cut Mark with Rivet - Wick Lane, London, UKview gallery
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U.K. and Ireland TrigpointsCut Mark with Rivet - Wick Lane, London, UK

in U.K. and Ireland Trigpoints

This mark is cut into the top of a low concrete wall on the south west side of the A12 slip road adjacent to Wick Lane.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 2/21/2017

last visited: never

Image for Benchmark (2) - St John the Baptist - Belton, Leicestershireview gallery
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U.K. and Ireland TrigpointsBenchmark (2) - St John the Baptist - Belton, Leicestershire

in U.K. and Ireland Trigpoints

A cut benchmark on the west face of the north aisle, St John the Baptist church, Belton.

posted by: Groundspeak Premium Member SMacB

location: East Midlands, United Kingdom

date approved: 2/19/2017

last visited: never

Image for Benchmark - Church Lane - Hemington, Leicestershireview gallery
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U.K. and Ireland TrigpointsBenchmark - Church Lane - Hemington, Leicestershire

in U.K. and Ireland Trigpoints

Cut benchmark on a property in Church Lane, Hemington.

posted by: Groundspeak Premium Member SMacB

location: East Midlands, United Kingdom

date approved: 2/18/2017

last visited: never

Image for Pivot Bench Mark: Douglas, Victoria Roadview gallery
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U.K. and Ireland TrigpointsPivot Bench Mark: Douglas, Victoria Road

in U.K. and Ireland Trigpoints

Pivot Bench Mark: Douglas, Victoria Road

posted by: Groundspeak Premium Member Mike_bjm

location: Isle of Man

date approved: 2/17/2017

last visited: never

Image for Pivot Bench Mark: Douglas, Crellin's Hillview gallery
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U.K. and Ireland TrigpointsPivot Bench Mark: Douglas, Crellin's Hill

in U.K. and Ireland Trigpoints

Pivot Bench Mark: Douglas, Crellin's Hill

posted by: Groundspeak Premium Member Mike_bjm

location: Isle of Man

date approved: 2/16/2017

last visited: never

Image for Pivot Bench Mark: Douglas, #22 Victoria Roadview gallery
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U.K. and Ireland TrigpointsPivot Bench Mark: Douglas, #22 Victoria Road

in U.K. and Ireland Trigpoints

Pivot Bench Mark: Douglas, #22 Victoria Road

posted by: Groundspeak Premium Member Mike_bjm

location: Isle of Man

date approved: 2/16/2017

last visited: never

Image for Cut Mark: Douglas, Barrack Streetview gallery
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U.K. and Ireland TrigpointsCut Mark: Douglas, Barrack Street

in U.K. and Ireland Trigpoints

Cut Mark near the entrance to "The Outback" sports bar in Barrack Street, Douglas.

posted by: Groundspeak Premium Member Mike_bjm

location: Isle of Man

date approved: 2/16/2017

last visited: 2/18/2017

Image for Pivot Bench Mark: Douglas, Victoria Road (Victoria Court)view gallery
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U.K. and Ireland TrigpointsPivot Bench Mark: Douglas, Victoria Road (Victoria Court)

in U.K. and Ireland Trigpoints

Pivot Bench Mark on the first step up to 'Victoria Court' on Victoria Road, Douglas

posted by: Groundspeak Premium Member Mike_bjm

location: Isle of Man

date approved: 2/16/2017

last visited: never

Image for Cut Mark On Bowling Park Gate Post - Bradford, UKview gallery
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U.K. and Ireland TrigpointsCut Mark On Bowling Park Gate Post - Bradford, UK

in U.K. and Ireland Trigpoints

This cut mark is at the base of a gate post at the main entrance to Bowling Park.

posted by: Groundspeak Premium Member dtrebilc

location: Yorkshire, United Kingdom

date approved: 2/16/2017

last visited: never

Image for Benchmark - St Mary - Withersfield, Suffolkview gallery
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U.K. and Ireland TrigpointsBenchmark - St Mary - Withersfield, Suffolk

in U.K. and Ireland Trigpoints

A cut benchmark on the porch of St Mary's church, Withersfield.

posted by: Groundspeak Premium Member SMacB

location: Eastern England, United Kingdom

date approved: 2/15/2017

last visited: never

Image for Cut Bench Mark - High Holborn, London, UKview gallery
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U.K. and Ireland TrigpointsCut Bench Mark - High Holborn, London, UK

in U.K. and Ireland Trigpoints

This mark is cut into the stonework of a building on the south east side of High Holborn in London.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 2/7/2017

last visited: never

Image for Hill of Kirriemuir Trig Pillar - Kirriemuir, Angus.view gallery
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U.K. and Ireland TrigpointsHill of Kirriemuir Trig Pillar - Kirriemuir, Angus.

in U.K. and Ireland Trigpoints

Triangulation pillar on the summit area of the hill at Kirriemuir in Scotland.

posted by: Groundspeak Regular Member creg-ny-baa

location: Northern Scotland, United Kingdom

date approved: 2/5/2017

last visited: never

Image for Horton Cross - Monks Yard bench markview gallery
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U.K. and Ireland TrigpointsHorton Cross - Monks Yard bench mark

in U.K. and Ireland Trigpoints

Cut Bench mark

posted by: Groundspeak Premium Member dave.johnson

location: United Kingdom

date approved: 2/5/2017

last visited: 2/12/2017

Image for Cut Mark: Ramsey, Lezayre Road Bridgeview gallery
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U.K. and Ireland TrigpointsCut Mark: Ramsey, Lezayre Road Bridge

in U.K. and Ireland Trigpoints

Cut Mark on the Lezayre Road, west of Ramsey, Isle of Man

posted by: Groundspeak Premium Member Mike_bjm

location: Isle of Man

date approved: 2/5/2017

last visited: never

Image for Benchmark - All Saints - Braunston, Northamptonshireview gallery
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U.K. and Ireland TrigpointsBenchmark - All Saints - Braunston, Northamptonshire

in U.K. and Ireland Trigpoints

A cut Benchmark on the east end of All Saints' church, Braunston.

posted by: Groundspeak Premium Member SMacB

location: East Midlands, United Kingdom

date approved: 1/29/2017

last visited: never

Image for Cut Bench Mark - Mile End Road, London, UKview gallery
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U.K. and Ireland TrigpointsCut Bench Mark - Mile End Road, London, UK

in U.K. and Ireland Trigpoints

This mark is cut into the brickwork of a building located on the south east side of Mile End Road opposite Cleveland Way.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 1/29/2017

last visited: never

Image for Cut Bench Mark - Mile End Road, London, UKview gallery
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U.K. and Ireland TrigpointsCut Bench Mark - Mile End Road, London, UK

in U.K. and Ireland Trigpoints

This mark is cut into the brickwork of a building on the south east side of Mile End Road. The mark is cut into the north east face of the building at its north corner. The building is on private property but the mark can be seen from the path.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 1/29/2017

last visited: never

Image for Cut Bench Mark - Durward Street, London, UKview gallery
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U.K. and Ireland TrigpointsCut Bench Mark - Durward Street, London, UK

in U.K. and Ireland Trigpoints

This mark is cut into a brick wall on the south east side of Durward Street close to the junction with Fulbourne Street.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 1/29/2017

last visited: never

Image for Cut Bench Mark - Mile End Road, London, UKview gallery
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U.K. and Ireland TrigpointsCut Bench Mark - Mile End Road, London, UK

in U.K. and Ireland Trigpoints

This mark is cut into the brickwork of a garden boundary wall of a row of buildings on the north west side of Mile End Road close to Stepney Green tube station.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 1/21/2017

last visited: never

Image for Trig Pillar - Findowrie, Angus.view gallery
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U.K. and Ireland TrigpointsTrig Pillar - Findowrie, Angus.

in U.K. and Ireland Trigpoints

Triangulation pillar on the edge of a field two and a half miles west of Brechin in Scotland.

posted by: Groundspeak Regular Member creg-ny-baa

location: Northern Scotland, United Kingdom

date approved: 1/21/2017

last visited: never

Image for Cut Bench Mark - Lansdowne Rise, London, UKview gallery
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U.K. and Ireland TrigpointsCut Bench Mark - Lansdowne Rise, London, UK

in U.K. and Ireland Trigpoints

The mark is cut into a brick wall on the north west side of Lansdowne Rise close to the junction with Lansdowne Road.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 1/13/2017

last visited: never

Image for Cut Bench Mark - Clarendon Road, London, UKview gallery
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U.K. and Ireland TrigpointsCut Bench Mark - Clarendon Road, London, UK

in U.K. and Ireland Trigpoints

This mark is cut into a brick post at the junction of Clarendon Road and Lansdowne Rise. The mark is on the Clarendon Road face of the post.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 1/13/2017

last visited: never

Image for Cut Bench Mark - Princes Place, London, UKview gallery
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U.K. and Ireland TrigpointsCut Bench Mark - Princes Place, London, UK

in U.K. and Ireland Trigpoints

This mark is cut into the brickwork of a garage at the junction of Princes Place and Queensdale Road. The mark is on the Princes Place face of the building.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 1/13/2017

last visited: never

Image for Kinpurnie Hill Trig Pillar - Newtyle, Angusview gallery
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U.K. and Ireland TrigpointsKinpurnie Hill Trig Pillar - Newtyle, Angus

in U.K. and Ireland Trigpoints

Triangulation pillar on the summit of Kinpurnie Hill, one of the Sidlaw Hills in eastern Scotland.

posted by: Groundspeak Regular Member creg-ny-baa

location: Northern Scotland, United Kingdom

date approved: 1/13/2017

last visited: never

Total Records: 6683 Page: 1 of 268 prev<<<[12345678910]>>>next
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