Proposed mine entry. The Mountain Mining Syndicate Ltd. , NOTE: No address given but area is above Rhos Common between Crynant/Treforgan and Ystradgynlais.

  • This material is held at
  • Reference
      GB 216 RD/N Pl 13/5400
  • Dates of Creation
      c. 1963
  • Language of Material
      English
  • Physical Description
      1 plan