Rhif ArchifTeitlLefelDisgrifiadCyfrwngDelweddauRhif Archif6513055TeitlAP2018_537_002 - RCAHMW Colour Oblique Digital Aerial PhotographsLefelItemDisgrifiadYnys Gron granite quarry and the town of Porthmadog. Oblique aerial photograph taken during the Royal Commission's programme of archaeological aerial reconnaissance by Toby Driver on 2nd October 2015.CyfrwngPhoto.DelweddauyRhif Archif6190831TeitlAP_2005_0584 - RCAHMW Colour Oblique Digital Aerial PhotographsLefelItemDisgrifiadRCAHMW digital colour oblique photograph of Ynys Gron Granite Quarry. Taken on 08/06/2005 by T.G. Driver.CyfrwngPhoto.DelweddauyRhif Archif6462818TeitlAP_2010_2363 - RCAHMW Colour Oblique Digital Aerial PhotographsLefelItemDisgrifiadRCAHMW colour oblique photograph of Garth (Ynys Gron) granite quarry. Taken by Toby Driver on 16/06/2010.CyfrwngPhoto.Delweddauy
