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TP6630 - Twyn Brynbychan
[UK map]
Grid reference :
Type :
Condition :
Good Good condition
Flush Bracket :
OSGB36 Station :
Current use :
Historic use :
T:UK waypoint :
County :
Mid Glamorgan
Nearest town :

OSGB36 trig archive spreadsheet - IW
Twyn BrynbychanSO11/T25SO11T025306322.37198914.69411.8212PILLAR01/07/1987101/04/1965N0
Twyn BrynbychanSO11/T25SO11T025306322.67198914.72411.8214PILLAR01/06/1966101/06/1965N1Refixed 1987
Twyn BrynbychanSO11/T25SO11T025306322.49198914.790.0004PILLAR01/06/195601Refixed 1966
Twyn Brynbychan AuxiliarySO11/T25SO11T025306457.86198594.260.0004BURIED BLK01/06/195300
Twyn BrynbychanSO11/T25SO11T025306322.39198914.98411.8214PILLAR01/06/1953101/04/1965N1Refixed 1956
Twyn BrynbychanSO11/T25SO11T025306321.83198914.68412.4183PILLAR01/06/1939101/07/1948N1Refixed 1956

Nearby trigpointsplacenames 

There are 27 photos for this trigpoint (view album).

This trigpoint:
Is ranked joint 2946th with 55 other trigs (more).
Has a mean score of 6.15/10 (from 26 logged visits)
Was First logged: 27th Feb 1999
Was Last logged: 24th May 2020

Of the 26 logged visits,
7 recorded a location and of these....

All were within 7m
The average error was 4m
1 was exact

MOUNTAIN ASH Graig Daren-Las Dduallt Mountain Ash St Margarets Church Spire Penrhiw-Cradoc Navigation Colliery Chimney Cwar Y Wningen Mountain Ash Reservoir Tower Newtown Penrhiwceiber Haulage Engine House Penrhiwceiber Colliery Baths Tower Penrhiwceiber Colliery Chimney Pen-Twyn-Uchaf Aber-Fan Twyn Brynbychan Auxiliary Nant Y Maen Cefn Y Fan Tyntetown All Saints Church Belfry Merthyr Vale Colliery Chimney Craig-Yr-Efail Mynydd Y Capel Tir-Cook Mynydd Goitre Coed Edwardsville asbown Robert Kemp jonglew Ramblingpaul caroleengel dewi o dre-gwyr Twyn Brynbychan [Zoom In/Out] [Show Labels]

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Logged Visits:

Good condition 24th May 2020  20:18  by underhill

FB Number: Not logged  Condition: Good  Score: 5/10

frpm mountain ash kennels

Good condition 12th Jan 2020  14:10  by bigtriglittlejig

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

Good condition 10th Feb 2019  13:07  by Juliebfitness

FB Number: Not logged  Condition: Good  Score: 5/10

Good condition 22nd Jul 2018  09:20  by Dusty

FB Number: S2248  Condition: Good  Score: 6/10

Revisit before heading on to the location of the Aux.


Good condition 22nd Jun 2018  15:58  by trigging on an island

FB Number: S2248  Condition: Good  Score: 9/10

Almost top marks for this one on a super afternoon.

Good condition 16th Dec 2017  21:42  by Father Ted

FB Number: S2248  Condition: Good  Score: 7/10

I fancied a train ride and a walk today to took the train to Mountain Ash. Didn't choose the most sensible way up as I wen't NE up past the cemetery and onto the adjacent hill as it was tricky to cross the ravine. Eventually got to a col then headed south and down through the woods to the trig point. After also visiting a nearby tricky geocache I came down a more sensible route and ended up by the cattery and then down to the station.

Not Logged 18th Nov 2017  09:35  by ltrc

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

Slightly damaged 25th Jul 2017  00:00  by ngthack

FB Number: Not logged  Condition: Slightly damaged  Score: 5/10

Good condition 28th Jun 2017  19:53  by Juliebfitness

FB Number: 2248  Condition: Good  Score: 7/10



Slightly damaged 9th Dec 2016  10:15  by jonglew

Gridref: ST 06323 98919   FB Number: S2248  Condition: Slightly damaged  Score: 6/10

Asked and given permission to park at cattery at end of Fforest Road. Steep farm track then woodland path before breaking out into open. Pillar sits at top of the hill. Top cap missing, no plug; LHD side sight hole open. There is a significant horizontal fracture running round all sides of the pillar at FB level and the top edges are becoming raggedly. There is a Twyn Brynbychan auxiliary buried block approx 350m SSE which doesn't have its own T:UK entry. Extensive panoramic views. Benchmark rivet found on a rock 100m NW.

Pillar TP6630©jonglew
Spider TP6630©jonglew
Flush Bracket TP6630©jonglew

Good condition 25th Oct 2016  15:39  by asbown

Gridref: ST 06319 98915   FB Number: S2248  Condition: Good  Score: 5/10

from Aberfan up over the A470 on a minor road, parked up and followed forest tracks up to the top.

Good condition 25th Oct 2016  15:39  by The reluctant trigger

FB Number: Not logged  Condition: Good  Score: 5/10

Good condition 2nd May 2016  18:30  by AsherMarley

FB Number: 2248  Condition: Good  Score: 8/10

Park at letti Turner Forestry road and follow the road to the top, situated under mast.

Marley at trig ©AsherMarley
Asher and Marley at trig ©AsherMarley

Not Logged 16th Mar 2016  18:27  by Robert Kemp

Gridref: ST 06323 98915   FB Number: Not logged  Condition: Not Logged  Score: 5/10

Slightly damaged 23rd Jan 2016  10:39  by dewi o dre-gwyr

Gridref: ST 06326 98922   FB Number: Not logged  Condition: Slightly damaged  Score: 7/10

Found whilst out Geocaching

The View

Good condition 7th Oct 2015  12:25  by Ramblingpaul

Gridref: ST 06326 98921   FB Number: S2248  Condition: Good  Score: 6/10

A bit of a slog from A4059 along forest roads and mountain bike tracks. Reasonable views

Not Logged 24th Sep 2013  11:00  by sniffadogz

FB Number: Not logged  Condition: Not Logged  Score: 8/10

Would be good views without the clouds.

Good condition 28th Oct 2012  00:00  by caroleengel

Gridref: ST 06326 98922   FB Number: Not logged  Condition: Good  Score: 5/10

Good condition 30th Jul 2011  10:34  by Trigger

FB Number: S2248  Condition: Good  Score: 5/10


Good condition 21st Jan 2010  15:20  by Dusty

FB Number: S2248  Condition: Good  Score: 6/10

Flush Bracket

Good condition 24th May 2009  23:35  by

Gridref: ST 06319 98914   FB Number: S2248  Condition: Good  Score: 7/10

Parked at the Kennels ST0545799143. Walked up the track to ST0577799339 and went NW up and around serpentine wide track all the way to the top. View obscured at trig by recently felled timber but good views available from summit in places. Followed the overhead cables at ST0617299218 down hill back toward ST0577799339. Either way is OK but forest road is easier gradient if a little longer.


Good condition 20th Apr 2007  12:00  by maurice

FB Number: S2248  Condition: Good  Score: 7/10

Couldn't find path in forest, so followed forest roads.

Good condition 17th Mar 2006  12:00  by peregrinus

FB Number: S2248  Condition: Good  Score: 6/10

vgc, no cap or plug, near mast compound, unexciting gappy view

S2248 fb ©peregrinus
S2248 top ©peregrinus
S2248 trig ©peregrinus
S2248 trig ©peregrinus

Good condition 25th Feb 2006  12:00  by The Reverend

FB Number: S2248  Condition: Good  Score: 6/10

Good condition 3rd May 2005  13:28  by rhayader_wanderer

FB Number: S2248  Condition: Good  Score: 6/10

Parking up at the head of the road that is signed to the kennels I thought I would be a good little boy and follow the footpath for this. the council even gave me a tempting pointer as I entered the wood. But at the first split "my" path wasnt there. Worked on and eventually found the fence that runs along the ridge to the trig with its adjacent path a solid wall of bike and 4x4 churned mud so parallleled it just inside the woodland where the ground is better. Trig less plug is in good shape. Descending I spotted a path running beneath the low voltage electric cables running in the right direction and followed it down almost to the start point with none of the issues of the ascent :-) For reference if you climb from the kennels it is about 50m on the right after you make the first 90deg left prior to entering the forestry and is an easy slog to the trig. Still at least it made trig 450 memorable.

Good condition 27th Feb 1999  00:00  by mickandshane

FB Number: S2248  Condition: Good  Score: 6/10

Plug missing.

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