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TP6576 - Trelleck
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OSGB36 Station :
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OSGB36 trig archive spreadsheet - IW

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There are 40 photos for this trigpoint (view album).

This trigpoint:
Is ranked joint 6443rd with 50 other trigs (more).
Has a mean score of 5.37/10 (from 41 logged visits)
Was First logged: 13th Mar 1995
Was Last logged: 11th Jan 2018

Of the 41 logged visits,
8 recorded a location and of these....

All were within 77m
The average error was 24m
1 was exact

The Coachmans Pair The Coachmans Pair arranc arranc Glaslyn Glaslyn wrose wrose Katy Katy Robert Kemp Robert Kemp caroleengel caroleengel Ramblingpaul Ramblingpaul Trelleck Trelleck [Zoom In/Out] [Hide Labels]

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Logged Visits:

Good condition 11th Jan 2018  13:30  by Richofsebast

FB Number: S3346  Condition: Good  Score: 8/10

Glorious day for Trigpointing. Very quiet up in the woods. Good view from the little car park.

Trig and Me ©Richofsebast
View from Car Park ©Richofsebast

Good condition 4th May 2017  14:53  by Thejenkies

FB Number: S3346  Condition: Good  Score: 6/10

Parked at the new parking area and then a very steep climb to the pillar. Unfortunately Pillar is in the woods so no views. Pillar in good condition.

Trelleck Pillar FB ©Thejenkies
Trelleck Pillar ©Thejenkies

Good condition 17th Oct 2016  14:56  by wrose

Gridref: SO 51217 05367   FB Number: S3346  Condition: Good  Score: 6/10

Nothing really to add other than to confirm that it is still there and in good condition.

S3346 Trelleck Pillar.
S3346 Trelleck Flush Bracket.
S3346 Trelleck Plug.

Good condition 29th Jan 2016  21:52  by trigging on an island

FB Number: S3346  Condition: Good  Score: 5/10

In dark and rain. Not the most pleasurable experience. Just happy to have found it without any bother.

Not Logged 12th Aug 2015  18:03  by Robert Kemp

Gridref: SO 51216 05376   FB Number: Not logged  Condition: Not Logged  Score: 5/10

Good condition 5th Jul 2015  13:30  by dugswell2

FB Number: S3346  Condition: Good  Score: 6/10

Beacon Hill, an easy walk along a path from the car park, however I walked straight passed it due to the trig being hidden by vegetation on the angle of approach.

Not Logged 9th May 2015  19:02  by WHITEDEER

FB Number: S3346  Condition: Not Logged  Score: 5/10

Good condition 20th Nov 2014  14:30  by samtrev

FB Number: S3346  Condition: Good  Score: 7/10

Good condition 17th Nov 2014  15:30  by Ramblingpaul

Gridref: SO 51219 05384   FB Number: S3346  Condition: Good  Score: 4/10

Good condition 16th Nov 2014  14:06  by Katy

Gridref: SO 51216 05374   FB Number: S3346  Condition: Good  Score: 5/10

tucked away in the trees


Good condition 9th Oct 2014  00:00  by caroleengel

Gridref: SO 51217 05385   FB Number: Not logged  Condition: Good  Score: 5/10

also a HuMP

Good condition 9th Oct 2013  13:00  by Chalky

FB Number: S3346  Condition: Good  Score: 4/10

Spider centre open , BSM type FB.

Good condition 8th Apr 2013  12:41  by The Coachmans Pair

Gridref: SO 51200 05300   FB Number: S3346  Condition: Good  Score: 6/10

Logged while Geocaching

Beacon Hill, Trellech ©The Coachmans Pair
The plate ©The Coachmans Pair

Good condition 8th Apr 2013  11:45  by Funk to Funky

FB Number: S3346  Condition: Good  Score: 6/10

Easy to find trig in good condition.

There she is!!

Good condition 2nd Dec 2012  09:00  by jonglew

FB Number: S3346  Condition: Good  Score: 4/10

Located on a small mound just off the path to the picnic area on this HuMP giving good views to the east towards the Brecons. Easy 250m walk from a good car park, which is closed until 31 Jan 2013 for 'harvesting' - they want to restrict access to the hill for the duration. We parked in front of the chain across the car park entrance (room for a couple of cars). The sign didn't specify what was being harvested and there was no activity when we visited. Pillar is in good condition, plug missing. There is what looks like a badger's head on one side of the pillar, can be seen in my 3rd photo, with another unidentified design above it. Seen the badger's head once before on the Wentwood pillar - does anyone have information about them?

Pillar TP6576©jonglew
Spider TP6576©jonglew
Design on the Pillar TP6576©jonglew
Flush Bracket TP6576©jonglew

Good condition 19th Oct 2012  09:19  by THE CYCLIST

FB Number: S3346  Condition: Good  Score: 5/10

Followed track from car park. Turn right before picnic benches. On tumulus? Totally surrounded by trees.

Good condition 7th Oct 2012  15:04  by Harris Tweed

FB Number: S3346  Condition: Good  Score: 4/10

Located in a wood near Beacon Hill. View obscured by trees. Trig on it's own mound.

Trellech October 2012 ©Harris Tweed

Good condition 25th Aug 2012  13:20  by von-horst

FB Number: S3346  Condition: Good  Score: 5/10

Found whilst doing some nearby caches.

The trigpoint.

Good condition 16th Jun 2012  12:29  by sickpit

FB Number: S3346  Condition: Good  Score: 5/10

Beacon hill, did a few caches nearby and dropped in to bag this trig


Good condition 30th Dec 2011  12:40  by JonT

FB Number: S3346  Condition: Good  Score: 7/10

Visited on a circular walk from Trelleck village on a dank winter’s day. Trelleck is a significant trig point. Rachel Hewitt, in her excellent account of the first triangulation of Britain, Map of a Nation, notes that ‘Trelleck Beacon was a gateway for the Ordnance Survey’s advance deep into Cymru’. She records that ‘William Mudge and Thomas Colby completed their observations at Trelleck Beacon towards the middle of the surveying season of 1804’. As others have noted, the current pillar sits on a small mound. I suspect that the mound is a relic of the original 1804 triangulation station on the site. The ‘dog and grenade’ stencilled graffiti (see photo) appears on a number of trig points locally. Some irreverent trig spotter’s tag. The cap is missing.

General view of the pillar ©JonT
View of the pillar, showing the small mound it sits on ©JonT
The flush bracket ©JonT
'Dog and grenade’ stencilled graffiti on the pillar ©JonT

Good condition 31st Aug 2011  13:42  by russie and sidekick

FB Number: S3346  Condition: Good  Score: 5/10

flush bracket

Good condition 25th Jun 2011  08:00  by Sam

FB Number: Not logged  Condition: Good  Score: 6/10

This is our first Trigpointing find, we have passed it so many times before I think we are allowed to log it! Catbrook Trigpointers

Good condition 26th May 2010  18:39  by Father Ted

FB Number: S3346  Condition: Good  Score: 5/10

It looks like it used to be painted white at one stage. There is a surprisingly good car park to the west on the minor road. From there it is a short walk up to the summit of this HuMP.

Good condition 18th Apr 2010  15:00  by arranc

Gridref: SO 51200 05300   FB Number: S3346  Condition: Good  Score: 5/10

Good condition 5th Mar 2010  12:45  by cmb1953

FB Number: S3346  Condition: Good  Score: 8/10

Good condition 4th Oct 2009  15:44  by gary&den

FB Number: S3346  Condition: Good  Score: 5/10

Not easy to find in the woodland ! Lovely views across to sugar loaf & pen y fan short way from trig

Good condition 17th Mar 2009  13:10  by tom

FB Number: S3346  Condition: Good  Score: 5/10

The pillar stands on a small mound in woodland at the summit of Beacon Hill to the west of the Wye Valley and to the south of Monmouth. The trig was visited on a circular walk, mostly through pleasant woodland, from Cleddon. The setting of the waterfall at Cleddon Shoots is particularly impressive. From some recently cleared heathland closer to the pillar there is a good view east over the Forest of Dean to the Cotswold Edge. There is a good view west from the entrance to the nearby Beacon View car park. The pillar lacks a cap or plug and has FB S/3346; it is surrounded by woodland which prevents a view from the site itself. The woods were full of the sounds of song birds singing, woodpeckers pecking and the occasional off-road motorcycle. Cleddon Shoots Woodland is an SSSI; Bertrand Russell was born at Cleddon Hall and the whole area is within the Wye Valley AONB.

Good condition 21st Feb 2009  13:00  by Stevie Boy

FB Number: Not logged  Condition: Good  Score: 7/10

Parked at Whitestone,Bargain Wood nr LLandogo. Wye Valley Walk with stunning viewpoints east over the Wye to Cuckoo Wood Duchess Ride v/pt. Then west up Beacon Hill & managed to find correct path to trig at first attempt! Nice pillar,nice spot.Then walked down to Trellech to visit St Anne's Well & Harold's Stones. Fantastic weather, hence a 7

Harolds Stones

Good condition 14th Feb 2009  12:30  by Dusty

FB Number: S3346  Condition: Good  Score: 6/10

Mrs Dusty & trigpoint
Flush Bracket

Good condition 7th Oct 2008  18:10  by The Moor We Hunt...

FB Number: S3346  Condition: Good  Score: 5/10

Hidden away in the trees, but good views from other parts of this woodland.

Good condition 9th Jun 2007  11:30  by bluebeard

FB Number: S3346  Condition: Good  Score: 5/10

foolishly went straight up hill from roadside through gorse, bracken and bramble. then found nice track to top and trig and returned that way instead.

Good condition 2nd Oct 2006  12:00  by iainmac

FB Number: S3346  Condition: Good  Score: 2/10


Good condition 16th Sep 2006  11:00  by sniffadogz

FB Number: S3346  Condition: Good  Score: 5/10

Visited while doing Nutnabber's Home cache. Not easy to find in the trees.

Good condition 5th Sep 2006  16:05  by Managra

FB Number: 3346  Condition: Good  Score: 5/10


Good condition 7th Jul 2006  20:15  by SidAndBob

FB Number: S3346  Condition: Good  Score: 5/10

Enjoyed a nice walk through the forest. Great views to the east, but not from the trig.

Bob at Trelleck ©SidAndBob

Good condition 23rd Jun 2006  15:20  by The Flying Boots

FB Number: S3346  Condition: Good  Score: 5/10

Another Trig on a regular dog walkin route for us.

Booboo on trig

Good condition 7th Jan 2006  11:58  by Glaslyn

Gridref: SO 51210 05370   FB Number: S3346  Condition: Good  Score: 5/10

Easy log with good parking.No views as in trees,would be good from parking but foggy.


Good condition 13th Feb 2005  13:30  by desperate dan

FB Number: S3346  Condition: Good  Score: 7/10

Blotted my navigational copybook here by going to the wrong bit of forest altogether, although it was called Trelleck Common. This wrong forest was full of rally cars screeching around the dirt tracks. Finally relocated at Beacon Hill, an altogether more pleasant and quiet spot.

Good condition 4th Jan 2003  12:00  by peregrinus

FB Number: S3346  Condition: Good  Score: 5/10

OK condition; no plug; limited view; BSM format - undistinguished woodland summit

Good condition 13th Dec 1998  00:00  by mickandshane

FB Number: 3346  Condition: Good  Score: 6/10

Plug missing.

Good condition 13th Mar 1995  16:00  by fasgadh

FB Number: S3346  Condition: Good  Score: 5/10

In the forest. Visited in error, because I thought it was a Marilyn! Outtopped by Wentwood. Still a hill missing from Clem's list. Ran by in 1979, when orienteering here - in those days I cycled to events. This was a 45 mile ride followed by my run! Then a mere 20miler afterwards (cheated used a train part way)

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