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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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Total Records: 2571 Page: 1 of 103 prev<<<[12345678910]>>>next
Image for Cut Mark with Rivet - Bushy Park, London, UKview gallery

here0 km

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U.K. and Ireland TrigpointsCut Mark with Rivet - Bushy Park, London, UK

in U.K. and Ireland Trigpoints

Chestnut Avenue passes through Bushy Park in a roughly north/south direction. Towards the southern end there is a pond that has a fountain named "Diana". On the west edge of the pond there is a small wall, possibly a seat, where the rivet is located.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 4/23/2015

last visited: never

Image for Cut Mark with Rivet - Hampton Court Road, Hampton Court, Surrey, UKview gallery

SS0.5 km

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U.K. and Ireland TrigpointsCut Mark with Rivet - Hampton Court Road, Hampton Court, Surrey, UK

in U.K. and Ireland Trigpoints

This rivet and cut mark are on the south side of Hampton Court Road at the Lion Gates entrance to the grounds of Hampton Court Palace. The rivet is at the base of west pillar that supports the gates.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 4/23/2015

last visited: never

Image for Cut Bench Mark - Hampton Court Bridge, London, UKview gallery

SWSW0.6 km

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U.K. and Ireland TrigpointsCut Bench Mark - Hampton Court Bridge, London, UK

in U.K. and Ireland Trigpoints

This mark is cut into the base of one of the pillars at the Trophy Gates entrance to Hampton Court Palace and Gardens on the south east side of Hampton Court Bridge at its northern end.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 4/23/2015

last visited: never

Image for Cut Bench Mark - Albany Reach, London, UKview gallery

SS0.8 km

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U.K. and Ireland TrigpointsCut Bench Mark - Albany Reach, London, UK

in U.K. and Ireland Trigpoints

This mark is cut into the brickwork of a small building on the south west side of the footpath that runs alongside Albany Reach at Hampton Court.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 4/23/2015

last visited: never

Image for Cut Bench Mark - Feltham Avenue, East Molesey, Surrey, UKview gallery

SWSW0.8 km

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U.K. and Ireland TrigpointsCut Bench Mark - Feltham Avenue, East Molesey, Surrey, UK

in U.K. and Ireland Trigpoints

This mark is cut into the brickwork of a building on the south east side of Feltham Avenue at the junction with River Bank close to Molesley Lock.

posted by: Groundspeak Premium Member Master Mariner

location: South East England, United Kingdom

date approved: 4/22/2015

last visited: never

Image for Cut Benchmark (and rivet), Hampton, Surrey UKview gallery

WW1.1 km

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U.K. and Ireland TrigpointsCut Benchmark (and rivet), Hampton, Surrey UK

in U.K. and Ireland Trigpoints

A cut benchmark and possible rivet/bolt on Hampton Court Road.

posted by: Groundspeak Premium Member AngelPick

location: South East England, United Kingdom

date approved: 5/14/2011

last visited: 4/22/2015

Image for Cut Bench Mark - Ewell Road, Surbiton, London, UKview gallery

SESE3.2 km

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U.K. and Ireland TrigpointsCut Bench Mark - Ewell Road, Surbiton, London, UK

in U.K. and Ireland Trigpoints

This mark is cut into the brickwork of a bridge parapet on the west side of Ewell Road. The bridge crosses mainline railway tracks and the mark is near the centre of the bridge.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 4/20/2015

last visited: never

Image for Cut Bench Mark - Ewell Road, Surbiton, London, UKview gallery

SESE3.2 km

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U.K. and Ireland TrigpointsCut Bench Mark - Ewell Road, Surbiton, London, UK

in U.K. and Ireland Trigpoints

This mark is cut into the brickwork of a building on the north east side of Ewell Road at the junction with Berrylands Road.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 4/20/2015

last visited: never

Image for Cut Bench Mark - Ewell Road, Surbiton, London, UKview gallery

SESE3.4 km

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U.K. and Ireland TrigpointsCut Bench Mark - Ewell Road, Surbiton, London, UK

in U.K. and Ireland Trigpoints

This mark is cut into the brickwork of a building on the north east side of Ewell Road just north of the Surbiton Hill Methodist church.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 4/20/2015

last visited: never

Image for Cut Mark - Norbiton Avenue, London.view gallery

EE3.5 km

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U.K. and Ireland TrigpointsCut Mark - Norbiton Avenue, London.

in U.K. and Ireland Trigpoints

This cut mark is on the side of a house in a residential street.

posted by: Groundspeak Regular Member HitchinLookers

location: London, United Kingdom

date approved: 5/2/2011

last visited: 4/24/2015

Image for Cut Bench Mark, Bank Buildings, Ewell Rd, Surbiton, Surrey UKview gallery

SESE3.7 km

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U.K. and Ireland TrigpointsCut Bench Mark, Bank Buildings, Ewell Rd, Surbiton, Surrey UK

in U.K. and Ireland Trigpoints

A nice example of a CBM on the Old Bank Building, it is actually on the junction with Langley Road.

posted by: Groundspeak Premium Member AngelPick

location: South East England, United Kingdom

date approved: 8/27/2011

last visited: 4/20/2015

Image for Cut Mark - Norbiton Railway Station, Kingston Upon Thamesview gallery

EE3.7 km

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U.K. and Ireland TrigpointsCut Mark - Norbiton Railway Station, Kingston Upon Thames

in U.K. and Ireland Trigpoints

This cut mark is a little faded but not to hard to find.

posted by: Groundspeak Regular Member HitchinLookers

location: London, United Kingdom

date approved: 3/7/2011

last visited: 4/24/2015

Image for Flush Bracket - Ewell Road, Surbiton, London, UKview gallery

SESE4.2 km

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U.K. and Ireland TrigpointsFlush Bracket - Ewell Road, Surbiton, London, UK

in U.K. and Ireland Trigpoints

The flush bracket is attached to the wall of a brick building on the north east side of Ewell Road close to the junction with Broomfield Road.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 4/21/2015

last visited: never

Image for Cut Benchmark, Tolworth Rise South, Tolworth, Surrey UKview gallery

SESE5.1 km

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U.K. and Ireland TrigpointsCut Benchmark, Tolworth Rise South, Tolworth, Surrey UK

in U.K. and Ireland Trigpoints

A cut benchmark on Tolworth Rise South not North!

posted by: Groundspeak Premium Member AngelPick

location: South East England, United Kingdom

date approved: 8/29/2011

last visited: never

Image for Flush Bracket, The Parade, Sunbury Cross, Surrey UKview gallery

WW5.8 km

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U.K. and Ireland TrigpointsFlush Bracket, The Parade, Sunbury Cross, Surrey UK

in U.K. and Ireland Trigpoints

A Flush Bracket on the side of a row of shops near the ever busy roundabout and Junction 1 of the M3.

posted by: Groundspeak Premium Member AngelPick

location: South East England, United Kingdom

date approved: 12/28/2011

last visited: never

Image for Cut Bench Mark, Milestone, Leatherhead Road, Chessington, Surrey, UKview gallery

SS6.9 km

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U.K. and Ireland TrigpointsCut Bench Mark, Milestone, Leatherhead Road, Chessington, Surrey, UK

in U.K. and Ireland Trigpoints

A Cut Benchmark on the rear side of a Milestone.

posted by: Groundspeak Premium Member AngelPick

location: South East England, United Kingdom

date approved: 6/13/2011

last visited: never

Image for Flush Bracket, Central Road, Worcester Park, Surrey UKview gallery

SESE7.7 km

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U.K. and Ireland TrigpointsFlush Bracket, Central Road, Worcester Park, Surrey UK

in U.K. and Ireland Trigpoints

Good example of a Flush Bracket on wall of shop.

posted by: Groundspeak Premium Member AngelPick

location: South East England, United Kingdom

date approved: 7/2/2011

last visited: 4/17/2015

Image for Cut Mark - Railway Viaduct, North Road, Nr Kew Gardens Station, Londonview gallery

NENE8.2 km

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U.K. and Ireland TrigpointsCut Mark - Railway Viaduct, North Road, Nr Kew Gardens Station, London

in U.K. and Ireland Trigpoints

A Cut Mark on the railway viaduct near Kew Gardens Station.

posted by: Groundspeak Premium Member Dragontree

location: London, United Kingdom

date approved: 11/14/2009

last visited: 3/27/2015

Image for Cut Bench Mark - St Mark's Place, Wimbledon, London, UKview gallery

EE9 km

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U.K. and Ireland TrigpointsCut Bench Mark - St Mark's Place, Wimbledon, London, UK

in U.K. and Ireland Trigpoints

The mark is cut into Wimbledon Library close to the southern angle on the St Mark's Place face of the building.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 11/11/2013

last visited: 2/4/2014

Image for Cut Bench Mark - Stonecot Hill, Morden, UKview gallery

EE9 km

Log it!

U.K. and Ireland TrigpointsCut Bench Mark - Stonecot Hill, Morden, UK

in U.K. and Ireland Trigpoints

This mark is cut into the brickwork of the end shop in a parade of shops on the south east side of Stonecot Hill.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 12/3/2013

last visited: 2/4/2014

Image for Cut Bench Mark - The Broadway, Wimbledon, London, UKview gallery

EE9.2 km

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U.K. and Ireland TrigpointsCut Bench Mark - The Broadway, Wimbledon, London, UK

in U.K. and Ireland Trigpoints

The mark is cut into stone at the south east corner of the Old Town Hall in The Broadway.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 11/11/2013

last visited: 2/4/2014

Image for Cut Bench Mark - London Road, Morden, UKview gallery

EE9.5 km

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U.K. and Ireland TrigpointsCut Bench Mark - London Road, Morden, UK

in U.K. and Ireland Trigpoints

This mark is cut into the brickwork of a block of flats, known as Hatfield mead, on the south east side of London Road.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 12/1/2013

last visited: 2/4/2014

Image for Cut Bench Mark - London Road, Morden, UKview gallery

EE9.8 km

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U.K. and Ireland TrigpointsCut Bench Mark - London Road, Morden, UK

in U.K. and Ireland Trigpoints

This mark is cut into the brickwork of a building on the north west side of London Road in Morden.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 12/1/2013

last visited: 2/4/2014

Image for Cut Bench Mark - Upper Richmond Road, London, UKview gallery

NENE10 km

Log it!

U.K. and Ireland TrigpointsCut Bench Mark - Upper Richmond Road, London, UK

in U.K. and Ireland Trigpoints

This mark is cut into a stone buttress of a former church, now the Putney Arts Theatre, on the south west side of Upper Richmond Road at the junction with Ravenna Road.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 3/12/2015

last visited: never

Image for Cut Bench Mark - London Road, Morden, UKview gallery

EE10 km

Log it!

U.K. and Ireland TrigpointsCut Bench Mark - London Road, Morden, UK

in U.K. and Ireland Trigpoints

This mark is cut into concrete on the front of a bank on the north west side of London Road. The parade of shops, in which the bank is located, includes the entrance to Morden tube station.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 11/30/2013

last visited: 2/4/2014

Total Records: 2571 Page: 1 of 103 prev<<<[12345678910]>>>next
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