Archif6025492TeitlAdditional InformationLefelItemDisgrifiadArchaeological survey for Benallt Iron and Manganese Mine, Aberdaron, incorporating Rhiw and Ty Canol mines carried out by Wardell Armstrong Consultants.CyfrwngText, Cartographic, Graphic.Delweddaun
Archif6422085TeitlWMPT207 - Welsh Mines Preservation TrustLefelBatchDisgrifiadDigital photos of Prince of Wales Quarry, with cover sheet.Cyfrwng14 photos. Photo, Text.Delweddaun
Archif6025491TeitlAdditional InformationLefelItemDisgrifiadArchaeological survey of Benallt Iron and Mangenese Mine, incorporating Rhiw and Ty Canol mines, carried out for Gwynedd County Council.CyfrwngText, Photo, Cartographic.Delweddaun
