No. 9 Area. Rhydyfro Borehole. A. Seams and Thin Coals between 1000ft and 1568ft. B. Summary of Seams (1777) Feb 1956

  • This material is held at
  • Reference
      GB 216 D/D PRO/NCB/6/128
  • Dates of Creation
      Feb 1956
  • Language of Material
      English
  • Physical Description
      1 file