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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: 6531 Page: 1 of 262 prev<<<[12345678910]>>>next
Image for Largo Lawview gallery
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U.K. and Ireland TrigpointsLargo Law

in U.K. and Ireland Trigpoints

A trig point pillar on the summit of Largo Law.

posted by: Groundspeak Regular Member creg-ny-baa

location: Northern Scotland, United Kingdom

date approved: 7/27/2016

last visited: never

Image for Benchmark - All Saints - Nailstone, Leicestershireview gallery
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U.K. and Ireland TrigpointsBenchmark - All Saints - Nailstone, Leicestershire

in U.K. and Ireland Trigpoints

Cut benchmark on the church tower of All Saints, Nailstone.

posted by: Groundspeak Premium Member SMacB

location: East Midlands, United Kingdom

date approved: 7/14/2016

last visited: never

Image for Benchmark - St Giles - Barlestone, Leicestershireview gallery
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U.K. and Ireland TrigpointsBenchmark - St Giles - Barlestone, Leicestershire

in U.K. and Ireland Trigpoints

Cut benchmark on the corner of St Giles' church tower, Barlestone.

posted by: Groundspeak Premium Member SMacB

location: East Midlands, United Kingdom

date approved: 7/14/2016

last visited: never

Image for Benchmark - St Peter - Copt Oak, Leicestershireview gallery
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U.K. and Ireland TrigpointsBenchmark - St Peter - Copt Oak, Leicestershire

in U.K. and Ireland Trigpoints

Cut benchmark on buttress of St Peter's church tower, Copt Oak.

posted by: Groundspeak Premium Member SMacB

location: East Midlands, United Kingdom

date approved: 7/11/2016

last visited: never

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

in U.K. and Ireland Trigpoints

This mark is cut into a brickwork pillar of a wall at the junction of Aberdeen Place and Cunningham Place.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 7/8/2016

last visited: never

Image for Cut Mark, Wortley Road,High Green South Yorkshire.view gallery
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U.K. and Ireland TrigpointsCut Mark, Wortley Road,High Green South Yorkshire.

in U.K. and Ireland Trigpoints

Cut Mark set in stone wall Wortley Road.

posted by: Groundspeak Premium Member wireworm

location: Yorkshire, United Kingdom

date approved: 7/1/2016

last visited: never

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

in U.K. and Ireland Trigpoints

This mark is cut into a brick wall on the north side of Trafalgar Street, beneath Brighton Railway Station and close to the Toy and Model Museum.

posted by: Groundspeak Premium Member Master Mariner

location: South East England, United Kingdom

date approved: 7/1/2016

last visited: never

Image for Cut Bench Mark - St Margaret's Catholic Church, Barking Road, London, UKview gallery
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U.K. and Ireland TrigpointsCut Bench Mark - St Margaret's Catholic Church, Barking Road, London, UK

in U.K. and Ireland Trigpoints

This mark is cut into the brickwork of St Margaret's catholic church on the north west side of Barking Road in east London. The mark is at the church's south corner.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 7/1/2016

last visited: never

Image for Benchmark - St Giles - Costock, Nottinghamshireview gallery
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U.K. and Ireland TrigpointsBenchmark - St Giles - Costock, Nottinghamshire

in U.K. and Ireland Trigpoints

Cut benchmark on the south face of St Giles' church, Costock.

posted by: Groundspeak Premium Member SMacB

location: East Midlands, United Kingdom

date approved: 7/1/2016

last visited: never

Image for Benchmark - Holy Trinity church - Wysall, Nottinghamshireview gallery
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U.K. and Ireland TrigpointsBenchmark - Holy Trinity church - Wysall, Nottinghamshire

in U.K. and Ireland Trigpoints

Cut benchmark on north east face of Holy Trinity church, Wysall.

posted by: Groundspeak Premium Member SMacB

location: East Midlands, United Kingdom

date approved: 7/1/2016

last visited: never

Image for Benchmark & 1GL bolt - St Mary & All Saints - Willoughby-on-the-Wolds, Nottinghamshireview gallery
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U.K. and Ireland TrigpointsBenchmark & 1GL bolt - St Mary & All Saints - Willoughby-on-the-Wolds, Nottinghamshire

in U.K. and Ireland Trigpoints

Cut benchmark and 1GL bolt on south west angle of church tower, St Mary & All Saints, Willoughby-on-the-Wolds.

posted by: Groundspeak Premium Member SMacB

location: East Midlands, United Kingdom

date approved: 6/27/2016

last visited: never

Image for Flush Bracket - Barking Road, London, UKview gallery
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U.K. and Ireland TrigpointsFlush Bracket - Barking Road, London, UK

in U.K. and Ireland Trigpoints

This flush bracket is attached to a red brick building on the north west side of Barking Road in east London. The bracket is at the east corner of the building.

posted by: Groundspeak Premium Member Master Mariner

location: London, United Kingdom

date approved: 6/27/2016

last visited: never

Image for Bridgewater Monument - Ashridge Estate  - Hertsview gallery
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U.K. and Ireland TrigpointsBridgewater Monument - Ashridge Estate - Herts

in U.K. and Ireland Trigpoints

A cut bench mark at the side of this Grade II Listed MONUMENT

posted by: Groundspeak Premium Member Norfolk12

location: Southern England, United Kingdom

date approved: 6/22/2016

last visited: never

Image for Cut Bench Mark - All Saints, Thurgarton, Norfolk.view gallery
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U.K. and Ireland TrigpointsCut Bench Mark - All Saints, Thurgarton, Norfolk.

in U.K. and Ireland Trigpoints

A cut bench mark on the church of All Saints in Thurgarton, Norfolk.

posted by: Groundspeak Premium Member MeerRescue

location: Eastern England, United Kingdom

date approved: 6/22/2016

last visited: never

Image for Cut Bench Mark - St Peter & St Paul, Sustead, Norfolk.view gallery
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U.K. and Ireland TrigpointsCut Bench Mark - St Peter & St Paul, Sustead, Norfolk.

in U.K. and Ireland Trigpoints

A Cut Bench Mark on the south east corner of the parish church of St Peter & St Paul in the village of Sustead, Norfolk.

posted by: Groundspeak Premium Member MeerRescue

location: Eastern England, United Kingdom

date approved: 6/22/2016

last visited: never

Image for Cut Bench Mark - All Saints Church, Weybourne, Norfolk.view gallery
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U.K. and Ireland TrigpointsCut Bench Mark - All Saints Church, Weybourne, Norfolk.

in U.K. and Ireland Trigpoints

A cut bench mark sited on the south west of the church tower of All Saints church, Weybourne, Norfolk.

posted by: Groundspeak Premium Member MeerRescue

location: Eastern England, United Kingdom

date approved: 6/22/2016

last visited: never

Image for Benchmark - St Remigius - Long Clawson, Leicestershireview gallery
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U.K. and Ireland TrigpointsBenchmark - St Remigius - Long Clawson, Leicestershire

in U.K. and Ireland Trigpoints

Cut benchmark on the south east angle of St Remigus' church, Long Clawson.

posted by: Groundspeak Premium Member SMacB

location: East Midlands, United Kingdom

date approved: 6/22/2016

last visited: never

Image for Benchmark - St Mary - Nether Broughton, Leicestershireview gallery
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U.K. and Ireland TrigpointsBenchmark - St Mary - Nether Broughton, Leicestershire

in U.K. and Ireland Trigpoints

Cut benchmark on St Mary's church, Nether Broughton.

posted by: Groundspeak Premium Member SMacB

location: East Midlands, United Kingdom

date approved: 6/22/2016

last visited: never

Image for Cut Bench Mark - St Andrews Church Little Massingham Norfolk.view gallery
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U.K. and Ireland TrigpointsCut Bench Mark - St Andrews Church Little Massingham Norfolk.

in U.K. and Ireland Trigpoints

A cut bench mark on the south east coner of the parish church of St Andrews in Little Massingham, Norfolk PE32 2JT

posted by: Groundspeak Premium Member MeerRescue

location: Eastern England, United Kingdom

date approved: 6/22/2016

last visited: never

Image for Cut Bench Mark - St.Michael and All Angel's Church, Bruisyard Road, Peasenhall, Suffolk. IP17 2HLview gallery
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U.K. and Ireland TrigpointsCut Bench Mark - St.Michael and All Angel's Church, Bruisyard Road, Peasenhall, Suffolk. IP17 2HL

in U.K. and Ireland Trigpoints

A well cut mark at the east end of St.Michael and All Angel's Church.

posted by: Groundspeak Premium Member greysman

location: South East England, United Kingdom

date approved: 6/22/2016

last visited: never

Image for Cut Bench Mark - St Peter & St Paul Edgefield, Norfolk.view gallery
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U.K. and Ireland TrigpointsCut Bench Mark - St Peter & St Paul Edgefield, Norfolk.

in U.K. and Ireland Trigpoints

A cut bench mark on the parish church of St Peter & St Paul in Edgefield, Norfolk NR24 2AF

posted by: Groundspeak Premium Member MeerRescue

location: Eastern England, United Kingdom

date approved: 6/19/2016

last visited: never

Image for Triangulation Pillar - Church Lane, Harpley, Norfolk.view gallery
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U.K. and Ireland TrigpointsTriangulation Pillar - Church Lane, Harpley, Norfolk.

in U.K. and Ireland Trigpoints

A triangulation pillar on the south east side of Church Lane, Harpley, Norfolk.

posted by: Groundspeak Premium Member MeerRescue

location: Eastern England, United Kingdom

date approved: 6/19/2016

last visited: never

Image for Cut Bench Mark - St Mary - Barningham Winterview gallery
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U.K. and Ireland TrigpointsCut Bench Mark - St Mary - Barningham Winter

in U.K. and Ireland Trigpoints

A cut bench mark on the restored 19th century former chancel, now the church building

posted by: Groundspeak Premium Member MeerRescue

location: Eastern England, United Kingdom

date approved: 6/19/2016

last visited: never

Image for Cut Bench Mark - St Michael - Plumstead, Norfolk.view gallery
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U.K. and Ireland TrigpointsCut Bench Mark - St Michael - Plumstead, Norfolk.

in U.K. and Ireland Trigpoints

A cut bench mark on the parish church of St Michael in Plumstead, Norfolk NR11 7LG.

posted by: Groundspeak Premium Member MeerRescue

location: Eastern England, United Kingdom

date approved: 6/19/2016

last visited: never

Image for Benchmark - The Corner Pin, The Green - Donington le Heath, Leicestershireview gallery
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U.K. and Ireland TrigpointsBenchmark - The Corner Pin, The Green - Donington le Heath, Leicestershire

in U.K. and Ireland Trigpoints

Cut benchmark on south west angle of The Corner Pin public house, The Green, Donngton le Heath.

posted by: Groundspeak Premium Member SMacB

location: East Midlands, United Kingdom

date approved: 6/13/2016

last visited: never

Total Records: 6531 Page: 1 of 262 prev<<<[12345678910]>>>next
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