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Name:Mynydd Machen
Hill number:2297
Height:362m / 1188ft
RHB Section:32C: Neath to Chepstow
County/UA:Caerphilly (UA)
Catchment:Rhymney, Catchment Boundaries, Usk
Watershed:Cardiff to Cape Wrath
Class:Marilyn, Hump, Tump (300-399m)
(Ma,Hu,Tu,3)
Grid ref:ST 22382 90018
Summit feature:rock 3m NW of trig point
Drop:185m
Col:177m  ST168949  
OS map sheet(s):(1:50k) 171
(1:25k) 152
Survey:Abney level
GPS data:show GPS entries for this hill

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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 236 users, only the latest 50 shown - Show all)ByDate of Ascent
Steeply up through the woods from the Country Park parking area then obvious route to the top. Excellent viewpoint.SteveG12/01/2019
Boxing day, bagged the trig point with grandma and the 4 dogs all togetherMountain mcgiverns26/12/2018
Circular walk from Sirhowy Valley Country Park, along a section of the Raven Walk (including raven skull sculpture) to the top, then along the Ridgeway and down. Supported by Jane.Speleoprez17/11/2018
Crosskeys - Mynydd y Lan - Mynydd Machen - Medart - Twmbarlwm - Crosskeys.Mark Jackson24/10/2018
Mast road from NW. Good view of Newport. Summit occupied by couple who had driven, fortunately for them the barrier was still open when they got down.Topographer5701/10/2018
Took a detour on the way home from a camping trip in Glamorgan to take in this Marilyn. Parked on layby just in front of access barrier to the mast road and took a leisurely walk to the top. Amazing views on summit! Spotted a few Stonechats on the way back down.Gerry the Ranger27/07/2018
From ST 216907. Parking for a couple or cars. Followed the vehicle track to mast and summit trig. was pasted by several vehicles driving up all the way. Ho Hum. Last Marilyn of Section 32 for elizyanne and myselfGmacT16/07/2018
Easy walk up. Practically a car park at the top! Sat on bench and watched the jets go by. Also watched helicopters drop water on the nearby hill. Trees on fire and had been for days.elizyanne16/07/2018
2/3 A steep pull up through the woods from Sirhowy Valley Country Park and then easy tracks. Great views from the top. Tried varying the descent but the path N of Gelli-ffiniog farm is not signed and doesn't seem to exist once the wood is reached. Final descent by the signed ROW a little to the W, i.e. the way we came up.milimana17/05/2018
Bagged as part of a long run from Cardiff to Risca. Coming up from Machen village, but the clear-felling presented a real challenge to get up and over.kasharic11/03/2018
From the Rhymney river in Machen village, up the footpath through the woodland behind the church, then diagonally northeast up through the clear-fell, then through another wood, and out onto the scrubby slopes on the east side of the mountain, then west up the Ridgeway path to the trig point at the summit.Mariana Trench04/02/2018
A good circular walk over Mynydd Machen and Mynydd y Lan from Crosskeys station in rain and mist. Crossed the road bridge over the Afon Ebwy E of the college, then took the FP signposted Mynydd Machen below Glenside, and followed my nose upwards through the mist. After Mynydd Machen, took the Rhymney Valley Ridgeway walk, then zig-zagged down to the footbridge below Wattsville. Up the FP towards Hafod Tudor, then onto the forestry track towards Mynydd y Lan. At the highest point, look for a good path following the top of the forestry, crossing a valley containing trail bike tracks, then following the forest fence NE up the hill, steep but easy, to meet a fence heading SE. A good path along the fence, hop over it where it turns E, and wander up to the summit. Head E to the forest fence, where you'll see a path heading down Craig y Pandy towards Crosskeys in long zig zags.Gill20/01/2018
Failed to climb from Mâchent the previous day due to footpaths being closed for forestry workings. So tried from north.. Drove up narrow minor road from Cwmfelinfach as far as the cattle grid where there is a car park (and, at the moment, a sign saying ‘road ahead closed’).From here it is a straightforward walk up a track.lenman29/12/2017
OtisGlenford28/12/2017
With TJB. From Cwmfelinfacm. Enjoyable walk. Straightforward. Good view point despite drizzle.trimarc215/11/2017
4/8M drove all the way to near the top.robertphillips09/11/2017
Still dark and still raining. Views from the trig limited to just a few metres but the bench was much appreciated.Alex C01/10/2017
I drove to the gate to the NW then walked up from there. Pillar good condition and located near huge mast, great views today. Clem, Hump, Marilyn, P30 Tump.griefmiester23/08/2017
From Sirhowy Valley Country Park to the trig point for a glorious viewWackywelshy05/08/2017
Parked by the park at the bottom of the hill and walked up.amarillo-oro-como19/02/2017
With: hb; Followed delightful path up through woods from Country Park before it opens out on ridge. Good views over Bristol Channel.Ian Baines26/08/2016
From church in Machen up Ridgeway path - nice circular walk ENE through forest and back via slag heap.twg2701/07/2016
Alone on Taith Torfaen.Rob Pen y Garn10/04/2016
Taith TorfaenTGRS10/04/2016
Followed concrete path up to the mast, just a little bit further to the trig. Amazing views in every direction, beautifully clear afternoon. With stig_nest.Laura.W20/03/2016
Drove up to the usual concrete track start from Risca. The round could really use some tlc. Man alive are there a lot of very large potholes. On ascent up track look out for the tree with legs. Youll see what i mean. Summit trig with a seriously huge view. No sounds from the valleys up here. Just peace. With Laura.W.stig_nest20/03/2016
A straight forward Marilyn walk ¾ mile up concrete drive then rough track to aerial masts and adjacent trig point. Made more interesting by continuing over summit down trail bike track, making a circular route, returning at bottom of hill to the east. Parked in small parking space (big enough for one) at ST 21598 90756. The hardest part was navigating the narrow roads and bridge over Sirhowey River from Cwmfelinfach to the west. I think it would be easier to approach from the east. In fact I recommend it.SteveSmith10/01/2016
Drove up the track, then final stroll to top. Strange to put a slag heap there!jenx19/11/2015
Hill walkers use the track mast to drive up and exercise dogs near the spoil heaps. In the dreek seemed like a good idea and had a short therefore 10min walk to top. 4/7 today and time saved used for a lunch stop!nordicstar19/11/2015
From the minor road where there is space for a couple of cars at ST 217907. Followed the vehicle track to mast and summit trig. Early morning mist meant views were limited.bowlesy10/10/2015
Part of LDWA Ravens Dare 26-mile challenge walkliljonb03/10/2015
Walked up from Machen, on a beautiful sunny day, via the slag heap on the common, which looked like an interesting ridge from a distance. Long conversations with the only two people I saw meant that I had to scuttle back down after visiting the trig point to collect my daughter from school...Cas-gwent02/10/2015
Easy 15 minute walk up from parking spot at ST 216907 for SOTA.G4OBK (Phil)14/08/2015
There is a driveable track up to 232897 and then a walk up to the summit on various tracks. With GB.bolton15/07/2015
Parked by cattle grid on road to SE at ST23435 89444 (could go higher but road rutted) – Wide tracks to summit. (PM)gerrybowes15/07/2015
From road to NW (21575 90742) track is driveable all the way to the summit. Fine views of the slag heaps!tim74706/07/2015
Took part in the Caerphilly challenge 15 mile Twmbarlwm trek with Hilary, Maggie and Karen. Stayed in the Castle Inn self catering rooms next to pub. Very friendly owners. Pouring down with rain at start of walk but brightened up in the afternoon to allow for lovely views.Suzyj09/05/2015
Parked at 203905 and headed west to what looked like a fine ridge. This turned out to be a slag heap. Once over this, onward to the classic Marilyn experience of masts, trig point and bronze age cairn. From the summit the slag heap is surreal, looking like a big slag slug on the landscape. View north up the valley is also weird, with the buildings in the valley bottom looking like a lake, as they don't creep up the steep valley sides, but stick to a contour.mindlessflogger07/02/2015
Easy walk from south up access road. Road a little rough though, head for the masts and you can't go wrongFergalh16/11/2014
18.15 with Jamie after seeing York city lose a7th minute lead after player sent off on second half and shipping three goals. Compensation of sunset on a new Marilyn. And after losing a denoted marlin this is Jamie's 300th again!!vegibagger11/10/2014
Initially suppose to be along the 'Raven Walk' I detoured off a few points the walk totalled 21.71 miles.ccstar16/08/2014
Parked at ST 23393 89616, last section after the house has many potholes. Easy walk to summit.Lionel Bidwell13/06/2014
VALLEYS 100EVERTON24/05/2014
With Valmike.hoult22/11/2013
Part of the Where Ravens Dare LDWA walkphilhythe05/10/2013
WHERE RAVENS DAREEVERTON05/10/2013
Dad's Birthday Walk with Grandad. Parked at entrance to Sirhowy Park, then climbed up to road, along ridge to trig point. Back over the top of the tip, then down. Picked blackberries.mills198302/09/2013
With Iain Brown from Machen. Scruffy warren of a farm avoided on descent by the higher path.Eddie10/07/2013
Went on Rhymney Ridge walk with schooldramaticjk12309/07/2013
An evening walk with Tiger Bay Ramblers from Sirhowy Country Park.islamidget26/05/2013