PLAN of Dinorwig pumped storage scheme, Marchlyn Dam spur drainage adit

This material is held atGwynedd Archives Service - Caernarfon Record Office / Gwasanaeth Archifau Gwynedd, Archifdy Caernarfon

  • Reference
    • GB 219 XMMAPS13534/8
  • Dates of Creation
    • 1974 Apr

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