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Name:Coety Mountain [Coity Mountain] [Mynydd Coety]
Hill number:2289
Height:578m / 1896ft
RHB Section:32C: Neath to Chepstow
County/UA:Blaenau Gwent
Catchment:Usk
Class:Marilyn, Hump, Dodd (500-599m), Dewey, Current County/UA Top,
Clem
(Ma,Hu,Tu,5,Dew,CoU,Cm)
Grid ref:SO 23161 07996
Summit feature:no feature: grassy rise
Drop:231m
Col:347m  SO192115  
OS map sheet(s):(1:50k) 161
(1:25k) OL13S
Observations:ground 190m SSE at SO 23257 07831 is about 0.5m lower
Survey:Abney level
Change log:show changes for this hill entry
GPS data:show GPS entries for this hill
Notes:
  • Blaenau Gwent current county/UA top
  • Nr Torfaen high point

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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.  Please quote the hill number and hill name.

Logged Descriptions  (logged by 280 users, only the latest 50 shown - Show all)ByDate of Ascent
w/Joselladhulmes24/03/2024
Cefn Coch-Coety Mountain-Coety Mountain Boundary-Gwastad-Mynydd James-Mulfran from north. Couldn't say much about first 3 as visibility down to about 30m which made things interesting. Happily cleared for middle part of day.TK09/03/2024
1/5. Parked near the Big Pit car park in a small area (free) reserved for walkers. Followed the nearby Coity Tips Trail for about 150m before turning L and following the Big Pit boundary fence WSW out onto the open moorland. A small trod continues and joins the old tarmac access road to the upper mine. Turned L here and shortly afterwards R up a steep slope, having passed some crags, onto the top. Wandered around the tussocks and heather for a while looking for the hp. Wonderful sunny morning. Returned the same way. Solo. Thanks to Isbjorn below for the suggested approach.richard6928/11/2023
After Mynydd Carn-y-Cefn, climbed up from Blaina via head of Tillery Valley, then returned to Winchelstown via flank of Cefn Coch and Mulfran. Top has no marker, but looks slightly higher than rest of summit area. Long walk!IanHHill15/09/2023
Cefn Coch > Coety Mountain > Coety Mountain (boundary) > Gwastad from GR: SO 23981 08680ronaldo33317/06/2023
Cefn Coch > Coety Mountain > Coety Mountain (boundary) > Gwastad from GR: SO 23981 08680Hippster17/06/2023
5 Hills with Peggy, fire on hill sidedavecnash14/06/2023
From NE parked on rough road just neyond caravan park. Walked up part of way with farmer who was riding an 18yr old horse and was briging sheep down off the hill. Good views, featureless top but dry grass.Nick Canute08/10/2022
Whistle Road car park > Path to ridge > Coety Mountain > Air Shaft > Track > Whistle Road car park.Winterfloodian27/07/2022
Parked at Big Pit mining museum car park, paid for parking but probably could have parked on the road, walk past front of museum and towards town, finally found the path running behind rugby pitch, Up past farm buildings and up to top, then down interesting big hole/mounds then down to abandoned farm buildings for a little explore and returnTribal2er03/07/2022
Revisit 17 years on … Run with Pauline from Cwm Tillery lakes … dry but heather still theremilejunkie29/04/2022
After JK Orienteering held at Pwll Du. Up from Coelty Tip trail. Feet mostly dry.davechaffey17/04/2022
With KeithByTheC. 12.8 mile circuit from Abertillary. Abertillary, Coety Mountain, Cefn Goch (Tump), Cwm Celyn, Mynydd Carn-y-cefn all the way along the ridge to entrance of wood at 203048, then down through wood to Abertillary.JulieB25/03/2022
From Gwastad. Mostly good tracks until fairly close to summit. Bit of tussocky grass and heather. KeithByTheC25/03/2022
Low cloud no views, grassy sheep pasture no mark. Penultimate Welsh MarilynDenise 23/01/2022
Circular walk from Blaenavon, fine weather, good walking on paths but off paths is very slow in heather and long grass. Lovely taste of the Welsh countryside.JazDisney16/01/2022
From Forge Side. The highest but least interesting of The Valleys HuMPs/Marilyns. Reminiscent of walking in the wretched South Pennines.Wycombe Wanderer15/01/2022
SOTAmike.hartley09/01/2022
From Big Pit. Boggy ground and a deep water-filled ditch to cross before reaching the hillside. More challenging than I was expecting! Solo.Dangerous Dave23/11/2021
Abertillery - Arail - Mynydd Carn-y-cefn - Nantyglo - Cefn Coch - Coety Mountain - Gwastad - Abertillerydavidpettit8419/11/2021
Solo Blaenavon loop on the hot Bank Holiday. Up from Forge Side via the bridleway then along the ridge following the boundary line. Great long views from the rather featureless summit. Onwards to Cefn Coch-Carreg Maen Taro standing stone-Pen Rhiw Ifor tip-Cefn y Galchen-Carnedd y Defaid cairns-Blaenavon.thesweetcheat31/05/2021
From the confusing and hiddeous mess of roads, buildings and fences that is Big Pit, but really easy peasy to get started. 3-4 free parking spaces set aside for walkers just below Big Pit CP barrier SO2381308957. From these CP places TR N (right), level, past the 'rusty miner' for a few metres to display board, then use adjacent kissing gate on L to start clockwise around Coity Tips Trail. After about 100m at 1st big RH bend and double gates, an unlikely looking tiny path goes straight ahead along outside edge of fence (on your L) and over a stile onto the common land (less than 150m from the CP). Small path, wet at first, leads directly up to old horizontal mine track and, just above that, a tarmac track ascending R to L leads up to a hidden very large metal shed. From E end of this metal shed an obvious scar leads up to a capacious gap in the skyline fence, from where several An Tx lead on, but peter out, in the mass of rough heather. A very direct route.Isbjorn15/04/2021
Parked in Whistle Road car park. Tracks to old mine, then straight up to Coety Mountain. Onward to Gwastad and back to Cefn Coch. Direct return from Cefn Coch.PGCE30/03/2021
From Big Pit, dull summit area but loved the mine, closed due to CovidN.Morters24/08/2020
Bit of a disappointment for a significant hill top like this. Imagine on a fine day the views would more than make up for a somewhat dull walk in.Alex C15/08/2020
3/6 Dewey day. From the end of the small road near the pub at Whistle Halt. Up FP to ridge, then north to Cefn Coch and back to path. Then along rough off road vehicle track along west side of Coity Mountain and up to near summit of Gwastad. Short navigation through heather. Back track to due west of Coity Mtn summit, then short cross country to the top. Descent to mine road and back to Whistle Halt. (S)silveracorn_alan21/07/2020
from whistle stop cp coety mountain block dusty found open 23159 07989, boundry, mynydd farteg fawr tp, gwastad, waen wen, mynydd james, cefn coch, mulfran and back to whistle stop 7 hrs approx 26ks lots of heather no paths to get to topsunderhill29/05/2020
4/5 From Big Pit Museum in thick mist. Terrain at first terrible – tussocks, bog. Rounsfell25/01/2020
Second of three Deweys from the free car park at the start of the road leading to the Whistle Inn 23004 10312. Ten mile done in four hours, route was Cefn Coch, Coity Mountain and Gwastad.WAYNE ROWLETT19/01/2020
Struggling to find anything good to say about this hill. However in the 50 minutes it took me , my wife really enjoyed her visit Underground at the Big Pit.NormanW06/10/2019
Blaenavon - Coety Mountain - Cefn Coch - Blaenavon.Mark Jackson05/10/2019
From NE. Looked for path along RoW from south corner of Big Pit compound but found only long grass. Animal tracks up shorter grass higher up but featureless summit is defended by tussocks on all sides.Topographer5704/09/2019
With E. Parked at Big Pit Mining Museum. There is a small area on access road marked for walkers as Museum car parks close at 17:30 with locked barriers. Walked around S side of museum buildings along access road then footpath onto open land. Once past path and stile beside museum, waist high in bracken up to access track from largest of the old quarries along hillside. Impossible to locate track up hillside nor smaller path further N. Hillside covered in man (and woman) eating bracken. Continued along access track N until reached track crossroads running N - S. Turned S up steeply rising track above quarry until ground levels out just before lone wind turbine. Then a slog over tussocky grass to summit which is a grassy rise clearly visible from surrounding terrain. Continued N to bag Coety Mountain Boundary another 200 metres further on. No feature only more tussocky grass. Rather than retrace steps, continued N to unmarked path which meandered down to Forge Side.Beeliner14/07/2019
1/7 Parked on lane to east, first county top of the day walking through slightly damp tussocks, mostly easy. Hill summed up by burnt out car on way up.penbet15/06/2019
from the car parking on the B4248 at 218111TeasyChris24/02/2019
Straight up from car park next to Big Pit staff car park.Pip5624/02/2019
2/3 - from CP at 2018109 - in fine weather - headed down track then onto ridge - windy from SWwychwood19/02/2019
Brilliant clear cold snowy day. Couldn't find the obvious paths marked on the OS 1:25k map, so spent some time traversing very boggy ground - lucky it was frozen!Speleoprez30/01/2019
Used Gill's route - as she says, a bit boggy lower down. Ponies were very friendly.SteveG10/01/2019
From Big Pit - wet windy low visibilityabbo000115/12/2018
From Big pit walkers CP which is further up the road on the left past the bus CP. ROW then up past the quarry and onto summit with elizyanne.GmacT16/07/2018
Finding the initial path through the tussocks was challenging and then used what would have been the tram line. Chatted to a biker that cycles everyday and wants to reach the top of the track in one go. Not today!Headed straight up the side of the quarry to the top.elizyanne16/07/2018
Coety Mountain, Coety Boundary Top and Gwastard ( careful how you say that one), with Scout from Big Pit car park; hard walking underfoot at times. Dry weather.Lou12/05/2018
3/4 Marilyn day. From the end of the small road near the pub at Whistle Halt. Up FP to ridge. Then along rough off road vehicle track along west side of Coity Mountain, before heading up to the summit. Descent to mine road above Blaenavon and back to Whistle Halt. 5.6km in 1h25m. (S)silveracorn_alan08/05/2018
From SO238089 - the walkers CP at Big Pit. Not the most inspired choice of ascent for hip replacement rehab. Also visited the nearby poss HP alternative to make sure.summitsup06/04/2018
A nice walk, once above the bogs. Choose a dry frosty day for this one. I parked at Forge Side; just follow the signs to FS, and you come to a surprising car park below some sheds, right by the start of the footpath up the hill. FP heads SE across pony fields, very wet near the feeders, then joins a bridleway heading W. Very wet in places, but the worst can be dodged easily. Improves to very good path by the ruin. When it crosses the high track which contours the hillside, just go straight up the hill, easy going until the summit plateau, which is a bit rough. The top is obvious, though best to wander along the hill top just to make sure of the bag.Gill23/02/2018
From Whistle Inn via wind farm. Very straightforward.lenman31/12/2017
From Big Pit walkers car park with TJBtrimarc215/11/2017
4/5M From big pit cp up left hand side over couple stiles through reeds to better ground to the top.robertphillips11/11/2017
Followed Fp from the 'Big Pit' & then over open moor between the air shaft & disused level. HP quite obvious. Lots of caterpillars about.DanMaisieBex14/10/2017