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TP5046 - Mynydd Ystum
[UK map]
Grid reference :
Type :
Condition :
Good Good condition
Flush Bracket :
OSGB36 Station :
Current use :
Historic use :
T:UK waypoint :
County :
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OSGB36 trig archive spreadsheet - IW
Mynydd YstumSH62/T46SH62T046218705.76328468.31146.5533PILLAR01/06/1956101/11/1955N0

Nearby trigpointsplacenames 

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

This trigpoint:
Is ranked joint 3507th with 35 other trigs (more).
Has a mean score of 5.95/10 (from 22 logged visits)
Was First logged: 8th Sep 2004
Was Last logged: 10th Jul 2018

Of the 22 logged visits,
8 recorded a location and of these....

All were within 68m
The average error was 16m
1 was exact

slateloose slateloose Glaslyn Glaslyn Whats the Point Whats the Point Mickandkim Mickandkim jonglew jonglew g4wsb g4wsb barryhunter barryhunter caroleengel caroleengel Mynydd Ystum Mynydd Ystum [Zoom In/Out] [Hide Labels]

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Selection of photos for this Pillar.

By Andy West

By asbown
Flush Bracket
By iainmac
See 22 more in the album.

Logged Visits:

Good condition 10th Jul 2018  16:05  by Andy West

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

Good condition 24th May 2018  12:14  by asbown

FB Number: S8236  Condition: Good  Score: 5/10

up the track and one gate from the road.

Good condition 29th Mar 2018  16:52  by slateloose

Gridref: SH 18700 28400   FB Number: S8236  Condition: Good  Score: 7/10

Open Access land with no obvious access point. Who decides these things ?. Parked at roadside to south and through open gate and track towards a second gate onto open fell. Great views from trig point, a little misty and starting to rain. Cattle grazing near top.

Not Logged 13th Jun 2017  20:15  by caierith

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

Good condition 21st Aug 2016  09:12  by jonglew

Gridref: SH 18707 28469   FB Number: S8236  Condition: Good  Score: 6/10

Roadside verge parking to S; field margins and a stock fence to gain open access land, then sparse gorse to top of Castell Odo, an IA hill fort. Pillar has an exceptionally smooth screed finish all over, a pristine pillar, in fact if there was a recruiting programme for trig pillars, this would be the poster boy (or girl, given the physiognomy). The original top cap, with raised lettering, has been retained; rear sight hole open. Outstanding panoramic sea and landscapes, with Bardsey Island prominent behind headland.

Pillar TP5046©jonglew
Spider TP5046©jonglew
Flush Bracket TP5046©jonglew

Not Logged 26th May 2016  11:57  by Robert Kemp

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

Good condition 26th Sep 2015  12:45  by Mickandkim

Gridref: SH 18706 28468   FB Number: S8236  Condition: Good  Score: 6/10

Short walk up from double gates on road to SE

Good condition 9th Apr 2015  14:23  by Whats the Point

Gridref: SH 18732 28436   FB Number: S8236  Condition: Good  Score: 6/10

The third (or fourth) on a walk from Aberdaron. Can see my complete route from up here. Glorious day but mist limiting view to a couple of miles.

Mynydd Ystum

Good condition 27th Mar 2015  10:29  by paulxtr

FB Number: S8236  Condition: Good  Score: 6/10

Parked at Rhosirwaun village hall then followed the prow from Cae Du until it ended then headed straight for the pillar. Access land surrounded by 3 barbed wire fences! Pillar in pristine condition with original cap.

Mynydd Ystum ©paulxtr

Good condition 14th Apr 2014  00:00  by caroleengel

Gridref: SH 18711 28472   FB Number: Not logged  Condition: Good  Score: 5/10

Followed BarryHunter's route

Good condition 22nd Aug 2013  08:30  by g4wsb

Gridref: SH 18708 28469   FB Number: S8236  Condition: Good  Score: 7/10


Good condition 21st Aug 2013  14:13  by vegibagger

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

Collected a load of mushrooms in the field on the walk up the north side

Slightly damaged 24th Jun 2013  16:57  by trigging on an island

FB Number: S8236  Condition: Slightly damaged  Score: 7/10

A quite sizable horizontal crack has developed on the top of the western face of the pillar.

Slight damage to the pillar

Good condition 19th Feb 2011  13:10  by sven

FB Number: S8236  Condition: Good  Score: 7/10

Bit of a nightmare to access. Followed footpath which the landowner doesn't want to admit to as the sign doesn't exist. Through gate, look left for the stile and follow vague path uphill. Over fixed wooden gate and continue uphill to three part barbed wire fence. 50 yds to TP. return journey took in some pretty big and aggressive looking Tup Rams.

Good condition 17th Sep 2009  12:30  by BILLY COO

FB Number: S8236  Condition: Good  Score: 6/10


Good condition 18th Jul 2009  11:06  by Glaslyn

Gridref: SH 18700 28460   FB Number: S8236  Condition: Good  Score: 6/10

Walk in past barns to the SW through gate to reach access land. Cattle in field but went the other way. Lovely viws.Pillar very good.


Good condition 19th Jun 2009  12:31  by Bridgeman

FB Number: S8236  Condition: Good  Score: 6/10

Attempted a circular walk from Porth Oer but had great problems on inland paths as most don't exist and had to force my way through hedges and over fences. approached from lane from North West. A good spot to have lunch with views.

Mynydd Ystum Trig Point
Mynydd Ystum Trig Point RB

Good condition 9th Apr 2009  15:40  by Dusty

FB Number: S8236  Condition: Good  Score: 6/10

The trigpoint lies almost in the middle of Castell Odo Iron Age Hill fort which has 2 circular ramparts about 55m in diameter. Structure remains can be seen within.

Flush Bracket

Good condition 27th Mar 2009  12:18  by Terry L

FB Number: S8236  Condition: Good  Score: 6/10

Metal plug [raised letters]. Very easy little hill, round & grassy appearance, but gorsey top. Earthen ramparts of Castell Odo hill fort clearly discernible. Public. Access Land, but ironically not easy to access - can be reached across pasture from public footpath to north east [Rhoshirwaun side], but necessary to negotiate perimeter fence. May be easier access from gate further along B4413.

Mynydd Ystum pillar

Good condition 31st May 2006  12:00  by iainmac

FB Number: S8236  Condition: Good  Score: 5/10


Good condition 19th Jun 2005  12:00  by peregrinus

FB Number: S8236  Condition: Good  Score: 7/10

vgc, metal cap, wide raised letters, heathy summit (hazy view)

Montaged by Jon Rouse ©peregrinus

Good condition 8th Sep 2004  21:15  by barryhunter

Gridref: SH 18707 28471   FB Number: S8236  Condition: Good  Score: 7/10

Excellent Location, although no public access there is a path with gates and stile starting at SH118280. Stilt sporting the raised lettering plug.

FB ©barryhunter
view towards SW tip of Peninsular and Bardsey Island ©barryhunter

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