Penwyllt and Ogof Ffynnon Ddu National Nature Reserve
Ogof Ffynnon Ddu is one of the most extensive cave networks in Europe. Above ground are limestone pavements and scarps.
OS grid ref SN 856155 (car park) to SN 868160
In and around Penwyllt are the remains of a former firebrick works, quarry-workings including tramroads and inclines scattered across the landscape.
Geology
- Carboniferous: Limestone, Millstone Grit
Maps
- OS Landranger 160, Explorer map OL12
- Geological - BGS 1:50,000 sheet: 231 ‘Merthyr Tydfil’
Guides
- Geotrail due out in early 2009
Facilities
- some interpretive panels around reserve
- car parking at Penwyllt at SN 856155
- Entry: free
Accessibility
- open country; some rough ground; mountain environment - take care!
Transport links
- By car – on minor road off A4067
- By train - nearest stations at Neath and Merthyr Tydfil - see Traveline Cymru
- By bus - see Traveline Cymru; 63 service (Stagecoach) stops at Glyntawe & Pen-y-cae
- by bike -
Other attractions nearby
