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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: 7355 Page: 1 of 295 prev<<<[12345678910]>>>next
Image for O.S. Triangulation Pillar - Maisondieu, Brechin, Angus.view gallery
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U.K. and Ireland TrigpointsO.S. Triangulation Pillar - Maisondieu, Brechin, Angus.

in U.K. and Ireland Trigpoints

Ordnance Survey trig pillar, constructed in 1950, situated on north-western edge of the town of Brechin.

posted by: Groundspeak Regular Member creg-ny-baa

location: Northern Scotland, United Kingdom

date approved: 7/10/2020

last visited: never

Image for Benchmark - St Leonard - Aston-le-Walls, Northamptonshireview gallery
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U.K. and Ireland TrigpointsBenchmark - St Leonard - Aston-le-Walls, Northamptonshire

in U.K. and Ireland Trigpoints

A cut benchmark on the bell tower of St Leonard's church, Aston-le-Walls.

posted by: Groundspeak Premium Member SMacB

location: East Midlands, United Kingdom

date approved: 6/17/2020

last visited: never

Image for Cut Benchmark - St Margrets Church, West Hoathly, West Sussexview gallery
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U.K. and Ireland TrigpointsCut Benchmark - St Margrets Church, West Hoathly, West Sussex

in U.K. and Ireland Trigpoints

Ordnance Survey benchmark on St Margrets Church, West Hoathly.

posted by: Groundspeak Regular Member JamesA60

location: South East England, United Kingdom

date approved: 5/31/2020

last visited: never

Image for Cut Benchmark:Job Centre - Kidsgrove, Stoke-on-Trent, Stafforsdshire, UK.view gallery
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U.K. and Ireland TrigpointsCut Benchmark:Job Centre - Kidsgrove, Stoke-on-Trent, Stafforsdshire, UK.

in U.K. and Ireland Trigpoints

A cut benchmark on the wall of the Job Centre located on The Avenue in Kidsgrove.

posted by: Groundspeak Premium Member Poole/Freeman

location: West Midlands, United Kingdom

date approved: 5/28/2020

last visited: never

Image for Cut Benchmark - Mill Place Farm, Kingscote, West Sussexview gallery
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U.K. and Ireland TrigpointsCut Benchmark - Mill Place Farm, Kingscote, West Sussex

in U.K. and Ireland Trigpoints

Ordnance Survey benchmark on Mill Place Farm railway bridge.

posted by: Groundspeak Regular Member JamesA60

location: South East England, United Kingdom

date approved: 5/18/2020

last visited: never

Image for Cut Mark: Railway Bridge No.54 - Kidsgrove, Stoke-on-Trent, Staffordshire, UK.view gallery
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U.K. and Ireland TrigpointsCut Mark: Railway Bridge No.54 - Kidsgrove, Stoke-on-Trent, Staffordshire, UK.

in U.K. and Ireland Trigpoints

A cut benchmark on the wall of Railway Bridge No.54 located on Gloucester Road in Kidsgrove.

posted by: Groundspeak Premium Member Poole/Freeman

location: West Midlands, United Kingdom

date approved: 5/18/2020

last visited: never

Image for Cut Mark: Red Bull Aqueduct - Kidsgrove, Stoke-on-Trent, Staffordshire, UK.view gallery
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U.K. and Ireland TrigpointsCut Mark: Red Bull Aqueduct - Kidsgrove, Stoke-on-Trent, Staffordshire, UK.

in U.K. and Ireland Trigpoints

A cut benchmark on the wall of the Red Bull Aqueduc located on A50 Liverpool Road in Kidsgrove.

posted by: Groundspeak Premium Member Poole/Freeman

location: West Midlands, United Kingdom

date approved: 5/18/2020

last visited: never

Image for Cut Mark: Railway Bridge No.56 - Kidsgrove, Stoke-on-Trent, Staffordshire, UK.view gallery
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U.K. and Ireland TrigpointsCut Mark: Railway Bridge No.56 - Kidsgrove, Stoke-on-Trent, Staffordshire, UK.

in U.K. and Ireland Trigpoints

A cut benchmark on the wall of Railway Bridge No.56 located on Liverpool Road East in Kidsgrove.

posted by: Groundspeak Premium Member Poole/Freeman

location: West Midlands, United Kingdom

date approved: 5/18/2020

last visited: never

Image for O.S. Triangulation Pillar - Cuttie's Hillock, Aberdeenshire.view gallery
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U.K. and Ireland TrigpointsO.S. Triangulation Pillar - Cuttie's Hillock, Aberdeenshire.

in U.K. and Ireland Trigpoints

Ordnance Survey trig pillar, constructed in 1949, in the midst of Cuttie's Wood, five miles south-west of Banchory in Aberdeenshire.

posted by: Groundspeak Regular Member creg-ny-baa

location: Northern Scotland, United Kingdom

date approved: 5/18/2020

last visited: never

Image for Cut Benchmark: Memorial Garden - Kidsgrove, Stoke-on-Trent, Stafforsdshire, UK.view gallery
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U.K. and Ireland TrigpointsCut Benchmark: Memorial Garden - Kidsgrove, Stoke-on-Trent, Stafforsdshire, UK.

in U.K. and Ireland Trigpoints

A cut benchmark on the wall of the Memorial Garden located on The Avenue, Kidsgrove.

posted by: Groundspeak Premium Member Poole/Freeman

location: West Midlands, United Kingdom

date approved: 5/13/2020

last visited: never

Image for Benchmark - Methodist Chapel - Cropredy, Oxfordshireview gallery
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U.K. and Ireland TrigpointsBenchmark - Methodist Chapel - Cropredy, Oxfordshire

in U.K. and Ireland Trigpoints

A cut benchmark on the south west corner of the Methodist Chapel, Cropredy.

posted by: Groundspeak Premium Member SMacB

location: South East England, United Kingdom

date approved: 5/8/2020

last visited: never

Image for Benchmark - St John the Baptist - Wappenbury, Warwickshireview gallery
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U.K. and Ireland TrigpointsBenchmark - St John the Baptist - Wappenbury, Warwickshire

in U.K. and Ireland Trigpoints

A cut benchmark on the north east corner of St John the Baptist's church, Wappenbury.

posted by: Groundspeak Premium Member SMacB

location: West Midlands, United Kingdom

date approved: 4/17/2020

last visited: never

Image for Cut Benchmark - Mill Lane, Dormans, Surreyview gallery
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U.K. and Ireland TrigpointsCut Benchmark - Mill Lane, Dormans, Surrey

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Ordnance Survey benchmark on Mill Lane railway bridge near Dormans Station.

posted by: Groundspeak Regular Member JamesA60

location: South East England, United Kingdom

date approved: 4/16/2020

last visited: never

Image for Flush Bracket - Wixey House, Chipping Campden, Gloucestershireview gallery
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U.K. and Ireland TrigpointsFlush Bracket - Wixey House, Chipping Campden, Gloucestershire

in U.K. and Ireland Trigpoints

Ordnance Survey flush bracket on Wixey House in Chipping Campden, Gloucestershire.

posted by: Groundspeak Regular Member JamesA60

location: West Midlands, United Kingdom

date approved: 4/12/2020

last visited: never

Image for Benchmark - St Margaret - Hunningham, Warwickshireview gallery
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U.K. and Ireland TrigpointsBenchmark - St Margaret - Hunningham, Warwickshire

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A cut benchmark on the east face of St Margaret's church, Hunningham.

posted by: Groundspeak Premium Member SMacB

location: West Midlands, United Kingdom

date approved: 4/4/2020

last visited: never

Image for Cut Mark - Drinking Fountain off Conway Road, Llanrhos, Conwy, Walesview gallery
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U.K. and Ireland TrigpointsCut Mark - Drinking Fountain off Conway Road, Llanrhos, Conwy, Wales

in U.K. and Ireland Trigpoints

Cut mark: On the side of drinking fountain off Conway Road, Conwy, Wales.

posted by: Groundspeak Premium Member Meirion

location: North Wales, United Kingdom

date approved: 4/2/2020

last visited: never

Image for Benchmark - St Leonard - Birdingbury, Warwickshireview gallery
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U.K. and Ireland TrigpointsBenchmark - St Leonard - Birdingbury, Warwickshire

in U.K. and Ireland Trigpoints

A cut benchmark on the north west corner of St Leonard's church, Birdingbury.

posted by: Groundspeak Premium Member SMacB

location: West Midlands, United Kingdom

date approved: 3/25/2020

last visited: never

Image for Cut Benchmark: Town Hall - Congleton, Cheshire, UK.view gallery
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U.K. and Ireland TrigpointsCut Benchmark: Town Hall - Congleton, Cheshire, UK.

in U.K. and Ireland Trigpoints

A cut benchmark on the town hall located on High Street in Congleton.

posted by: Groundspeak Premium Member Poole/Freeman

location: North West England, United Kingdom

date approved: 3/14/2020

last visited: 6/17/2019

Image for Cut Mark, 31 Baxter Street, Kidderminster, Worcestershire, Englandview gallery
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U.K. and Ireland TrigpointsCut Mark, 31 Baxter Street, Kidderminster, Worcestershire, England

in U.K. and Ireland Trigpoints

Cut Mark in the front wall of the house at 31 Baxter Street, Kidderminster.

posted by: Groundspeak Premium Member The_Senior_Crabbes

location: West Midlands, United Kingdom

date approved: 3/4/2020

last visited: never

Image for Cut Mark, 61 Baxter Street, Kidderminster, Worcestershire, Englandview gallery
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U.K. and Ireland TrigpointsCut Mark, 61 Baxter Street, Kidderminster, Worcestershire, England

in U.K. and Ireland Trigpoints

Cut Mark in the garden wall of 61 Baxter Street, Kidderminster

posted by: Groundspeak Premium Member The_Senior_Crabbes

location: West Midlands, United Kingdom

date approved: 3/4/2020

last visited: never

Image for Cut Mark, Long Acre, Kidderminster, Worcestershire, Englandview gallery
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U.K. and Ireland TrigpointsCut Mark, Long Acre, Kidderminster, Worcestershire, England

in U.K. and Ireland Trigpoints

Cut Mark in a wall on Long Acre, Kidderminster

posted by: Groundspeak Premium Member The_Senior_Crabbes

location: West Midlands, United Kingdom

date approved: 3/4/2020

last visited: never

Image for Cut Mark, 415A Hurcott Road, Kidderminster, Worcestershire, Englandview gallery
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U.K. and Ireland TrigpointsCut Mark, 415A Hurcott Road, Kidderminster, Worcestershire, England

in U.K. and Ireland Trigpoints

Cut mark on the wall of 415A Hurcott Road, Kidderminster

posted by: Groundspeak Premium Member The_Senior_Crabbes

location: West Midlands, United Kingdom

date approved: 3/4/2020

last visited: never

Image for Flush Bracket, 43 Birmingham Road, Kidderminster, Worcestershire, Englandview gallery
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U.K. and Ireland TrigpointsFlush Bracket, 43 Birmingham Road, Kidderminster, Worcestershire, England

in U.K. and Ireland Trigpoints

Partly buried flush bracket on the wall of a carpet shop at 43 Birmingham Road, Kidderminster.

posted by: Groundspeak Premium Member The_Senior_Crabbes

location: West Midlands, United Kingdom

date approved: 3/4/2020

last visited: never

Image for Cut Mark, St Mary's Church Chantry, Kidderminster, Worcestershire, Englandview gallery
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U.K. and Ireland TrigpointsCut Mark, St Mary's Church Chantry, Kidderminster, Worcestershire, England

in U.K. and Ireland Trigpoints

Cut mark on the wall of the Chantry of St. Mary's Church, Kidderminster

posted by: Groundspeak Premium Member The_Senior_Crabbes

location: West Midlands, United Kingdom

date approved: 2/28/2020

last visited: never

Image for Cut Mark, 4 Radford Avenue, Kidderminster, Worcestershire, Englandview gallery
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U.K. and Ireland TrigpointsCut Mark, 4 Radford Avenue, Kidderminster, Worcestershire, England

in U.K. and Ireland Trigpoints

Cut mark in the wall of 4 Radford Avenue, Kidderminster.

posted by: Groundspeak Premium Member The_Senior_Crabbes

location: West Midlands, United Kingdom

date approved: 2/28/2020

last visited: never

Total Records: 7355 Page: 1 of 295 prev<<<[12345678910]>>>next
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