Fforest Fawr and the GeoPark


Route details

Region: Brecon Beacons
Start at: Ystradfellte Road
Circular Route
Grid ref: SN927164
Difficulty: Medium
Scramble element: Walking
Grade:
Distance: 17.6 kilometres
Total ascent: 746 meters
Approx. time needed: 5 hrs 45 mins
Map: OS Explorer OL12 Brecon Beacons National Park
   
OS
Road
Satellite
Hybrid
Terrain
Profile

Legs

 
 
Leg:1
From:Ystradfellte Road
To:Fan Gyhirych
Distance:7 kilometres
Grid Ref:SN927164
Grid Ref:SN880190
Ascent:N/A
 
 
 
 
  From the car park on the Ystradfellte road, return to the road and walk 500m north along the road to the stile on the left; climb north-west to the ridge of Fan Nedd and its trig point summit. Descend N.W to Bwlch y Duwynt though boggy terrain until you reach the landrover track running S.W. At SN890189 leave the track and head west for the summit of Fan Gyhirych, with great views of the bijou Scottish style ridge of the hill. If you wish, you can detour en route to take in the 2000ft summit of Fan Fraith, but this is for hill-baggers only and the boggy rise is probably best avoided.  
 
 
 
Leg:2
From:Fan Gyhirych
To:GeoPark
Distance:3 kilometres
Grid Ref:SN880190
Grid Ref:SN875164
Ascent:N/A
 
 
 
 
  Descend due south off Fan Gyhirych until you rejoin the landrover track, then at the junction at the edge of the forestry, take the left turn and continue, crossing a small river, until you come to a second junction near some quarries. Ascend the hillside to the right of the quarries and you will meet a decrepit wall and a rather more robust fence. Nip over the fence (blush); many have done this before and you're bound to find a leftover fencepost or a pile of stones to assist in the nipping over if you follow the fence eastwards. Then cut across rough heather until you meet an obvious footpath. This is the Beacons Way.



 
 
 
 
Leg:3
From:GeoPark
To:Nedd Fechan
Distance:5 kilometres
Grid Ref:SN875164
Grid Ref:SN911148
Ascent:N/A
 
 
 
 
  You are now in the Fforest Fawr GeoPark and this limestone area is riddled with shakeholes. A quick detour to the south will take you to the small summit of Carreg Cadno and its limestone pavement, and you can easily rejoin the Beacons Way, following that in a S.E direction across heathery country. As you continue S.E, keep an eye open for pillow mounds, artificial warrens for rabbit farming, and a series of stone enclosures, possibly for sheep. Just after an abandoned farmstead, join another landrover track and arrive at the junction of footpaths at SN907143. Turn N.E here and drop down to cross the Nedd Fechan river.  
 
 
 
Leg:4
From:Nedd Fechan
To:Ystradfellte Road
Distance:3 kilometres
Grid Ref:SN911148
Grid Ref:SN927164
Ascent:N/A
 
 
 
 
  Climb out of the Nedd Fechan valley onto the Sarn Helen, the Roman road that links the Usk valley with the Vale of Neath providing an important line of communication from the coastal zone to the Roman fort at Y Gaer just outside Brecon. This typically Roman straight track will take you back to your car, past the standing stone of Maen Madoc, a late Roman memorial to Dervacus, son of Justus, and a temporary encampment of the Roman army in the forestry, though this is extremely hard to see. The Afon Llia at the carpark provides a convenient spot to wash off boots or go for a paddle at the end of your walk.  
 

Getting there

From the A465 Heads of the Valleys Road, take the roundabout at Hirwaun and head north through Penderyn, then turn left to take the unclassified road to Ystradfellte, then head north to the carpark just before you reach Fan Nedd.

Facilities

Public toilets at carpark in Ystradfellte.
New Inn pub, Ystradfellte.
Also pubs in nearby Penderyn, and if the weather turns against you, there's the Welsh Whisky distillery in Penderyn with its visitor centre.

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