Add marker to map:              help
Marker Notes X

To add your own marker to the map, click on the appropriate symbol below the map, then click again at the location required on the map (using the crosshairs).

Logged-in registered users only...
When you add a marker, a pop-up box should then appear on the map - fill in the elevation (if known) and a brief description of your marker, then click [save].

To view previously saved markers which fall within the bounds of the map, click the show link (you may need to repeat this if you zoom or pan away from the current position on the map).

Name:Mynydd Ton
Hill number:3536
Height:539m / 1768ft
Parent (Ma):2288  Craig y Llyn
RHB Section:32C: Neath to Chepstow
County/UA:Rhondda Cynon Taff (CoU)
Catchment:Ogmore, Catchment Boundaries, Taff
Watershed:Severn Estuary
Class:Dodd (500-599m), Dewey, Subhump
Grid ref:SS 94798 93957
Summit feature:small hollowed cairn in clearing
Col:447m  SS939944  
OS map sheet(s):(1:50k) 170
(1:25k) 166W
Observations:this is cairn shown as 1769ft on old maps and is 175m SW of trig point (SS 94934 94064)
Comments:New height is derived from surveyed height on old 1:10,560 maps published from 1884 to 1945 and is in trees about 180m SW of trig point (SS 94934 94064)
Change log:show changes for this hill entry
GPS data:show GPS entries for this hill

Show Map
(Please be considerate with your usage of the OS map pages, as there are daily limits)

View on: Geograph  OS Maps  Streetmap  Magic  NLS  OSM

Full screen map
Switch to Bing Maps view
(Please be considerate with your usage of the Full Screen/Bing Maps pages, as there are monthly limits)

Resize map: portrait / landscape / reset

Map Help, This page uses the Ordnance Survey OpenSpace API
which does not include Explorer (1:25000 scale) mapping.

Show/hide GPS File for mountains/markers shown

Show/hide GPX File for mountains shown

No summit photo available
Hill summit
No portrait photo available
Hill portrait

To contribute a summit or portrait photo for a hill
please contact the hillsummits website

N.B. Some hill summits are on private property or on land where there is no public right of way.  Permission should be sought from the landowner where access to a hill summit is through private land.
Please report via the contact page any logs you see below which describe or encourage acts of trespass, and mention the hill number and hill name.

Logged Descriptions  (logged by 55 users, only the latest 50 shown - Show all)ByDate of Ascent
From the viewpoint. Great views across to Somerset and Devon.Campbell Singer01/09/2019
2/4 Parked at the viewpoint and followed gravel path to the forest, visited both the cairn and the (man made?) mound near the large black puddle.penbet28/07/2019
Started 940945 - in darkness - fine weather - followed track SE then took subsidiary track to edge of forest. Followed path forest side of fence line to wide break - headed E towards summit which is found in a small clearing in S side of breakwychwood19/04/2019
From the viewpoint car park at the head of Cwm Dar on the A 4061. Took tracks up to the forest edge, then over barbed wire fence and along forest track. Trig in a forest clearing, accessed by a path cut through the firs. Also visited the cairn and likely high point in the wide gap between the trees close to the western edge of the forest. Returned the same way. with MP and AW.Man of Kernow125/08/2018
Climbed up from Cwm Clydach through the country park. Over Mynydd William Meyrick then onto Mynydd Ton. Returned on forestry tracks via Mynydd Bwllfa. Summit cairn is separated from trig by very wet/boggy ground.Arbie10/05/2018
Parked in large layby/viewpoint at 939946 Up forest road to forest entrance & stile at 946941 Over stile & then SSE along edge of forest for about 250yd to wide fire break Along fire break for 100yd or so & hollow cairn is in clearing on right hand side. (S).gerrybowes27/09/2017
From view point / layby at junc A4017 and A4061. Good forest road initially then straight through forest to trig pillar before taking the fire break W to forest edge and checking out the new HP. Would take the trig as the HP, but the tamperers know better. From the brurned out 4x4 at SS94699392 (the better way to access both HP and trig), headed S to the trig surface block (Nant Blaenogwr) and pillar (Garn Fawr) for a pleasant 5 mile round trip before rain set in for rest of the day.jonglew12/01/2017
From view point up track to forest edge, firebreak no has abandoned 4x4 on its side. Trig was found by going down forest track at the end of firebreak and looking through the trees. In a small clearing amongst trees. HP visited as well.PeterD06/08/2016
Must have passed this on the way to Mynydd William Meyrick trigppoint. Had read the previous logs for this but still struggled. If you head up the main track and turn right (SS 94564 94124) along the edge of the forest you will come to a fire break on the left (SS 94698 93939). Take this track and keep going until you see a small track off to the left (SS 94959 94033), it leads straight to the trig point. It's like a Narnia path with the trig shining at the end, just perfect! Trig is damaged and a tad crumbly in places.thejackrustles05/03/2016
Parked at viewpoint above Treorchy and followed track to edge of forest. Nice views on descent.Ramblingpaul05/01/2016
From bwlch on rough roads made for m/cyclists to forest edge. Cairn 120 m in from edge. Could not find column.arranc20/09/2015
Start ~ 940945, View point. Quick trip up good track, summit in clearing on right of firebreak. With Wombourne.steve hudson07/09/2015
From GR 940945. With SH.wombourne07/09/2015
Parked in the layby at the junction of the A4061 and A4107. Walked up the track to where it swings N and heads for the forest. Climbed direct to a fire break at SS 94689E 93921N. Followed fire break for 120 metres and turned right into a short fire break. Top at end of this. Is a hollow cairn. Return the same. No views cloud and rain.MikeM13/06/2015
From viewpoint up track then across grass to forest edge and along track for about 100m to old cairn.SS15/03/2015
From the viewing point where there was a rather optimistic ice cream van considering there was snow on the higher Beacons and there was a cold wind. To find the summit you go left into the forest along an open way and it is in another open bit off to the right.clivevilla14/03/2015
4/9 easy to climb up to top from viewing point. Cairn easy to find but trig pillar could not findFergalh07/12/2014
From layby at road summit, was please to find no Forest wading was required.rhalstead19/05/2014
From CP/viewing area to NW, obvious track to SE, either by windy track or direct path. At stile at forest edge DONT follow forest track to east (like I did), turn right and follow newish fence.dicky06/08/2013
Easy parking at viewing area to NW. Path/track.destaylor08/11/2012
Easy walk up from the road, snow on the sheltered edges of forest. Visited Cairn. Could not find the Trig point at all, was pleased the cairn is the actual summit. I see another blasted windfarm is going up close by.isabelle05/11/2012
Solo walk from Pentre via Maendy Camp to visit the Mynydd Ton bronze age cairns and on to Garn Fawr/Garn Fach ruined cairns before heading east to Mynydd y Gelli "stone circle".thesweetcheat17/07/2010
To find TP:- From the forestry gate to the NW follow the new track along the edge of the forestry in a SE direction. At the first break in the trees follow the path eastwards until you reach a small pile of stones. Push through the first branches and a hidden path direct to the trigpoint is uncovered. Cairn easy to find from there.Dusty22/04/2009
walked from ton pentre up cwm cesig to the main forestry commission road.l had to take a compass bearing from the cairn as trig point is well hiddenhodder26/09/2007
After D OF E supervising.Out and back from road. Came along this ridge on Capricorn O event @1993 -a monster 53 k day on Elite course around the Rhonda valleys.Chris Pearson21/04/2006
In middle of dense connifer forest. Trig point in small clearing is hard to find if approaching from wronge angel which I did!Father Ted18/12/2005
access from new W-E track 20m N of summit, surrounded by trees, which apparently also cover tumuli. from pass to W RHW18/04/1998
Alan Whatley30/12/2017
Martin R22/03/2017
Robert Kemp26/10/2014
andrew brown05/01/2013
Steve Q21/07/2012
Andy West21/07/2010
carole engel06/08/2009