Dinas Rock and Gunpowder Works

Covid-19 – further advice on enjoying the Geopark safely.

Two walks start near this spectacular quarried limestone cliff formed on the Neath Disturbance at the head of the Vale of Neath.

OS grid ref SN 912079 (car park) to SN 920086

The shorter walk runs beside the Sychryd to a view of the steep cliff known as Bwa Maen – a tight geological fold which gives it its Welsh name which means the ‘bow or arch rock’.  The longer walk explores the former gunpowder works strung out along the north bank of the Afon Mellte.


  • Carboniferous Limestone, Twrch Sandstone (‘Basal Grit’)


  • OS Landranger 160, Explorer map OL12
  • Geological — BGS 1:50,000 sheet: 231 ‘Merthyr Tydfil’


  • ‘The Old Gunpowder Factory at Glynneath’
  • ‘Explosive Times’ –  a ‘manga’-style graphic novel booklet
  • Audio trail — follow this link to download the ‘Powder Trail’.


  • Cafe in community hall at weekends
  • Car parking at SN 912079
  • Entry: free


  • Flat; barrier free

Transport links

  • By car — beyond the end of the B4242
  • By train — nearest stations at Neath and Merthyr Tydfil — see Traveline Cymru
  • By bus — see Traveline Cymru

Other attractions nearby