Maesgwyn Opencast Coal Site. Exploratory Core Drilling, Analyses of Coal Seams. White Four Feet Seam, Eighteen Feet Seam, Cornish Four Feet Seam, Nine Feet Seam (554/60/9 O.C) Oct 1960

  • This material is held at
  • Reference
      GB 216 D/D PRO/NCB/6/721
  • Dates of Creation
      Oct 1960
  • Language of Material
  • Physical Description
      1 file