LevelItemDescriptionPant Glas Uchaf, Upper Clynnog; Report by Peter Smith (RCAHMW) dated 24th May 1954.ArchiveG.B. Mason CollectionDateArchive Number6003766
LevelItemDescriptionOutcrop of granite, much used in Pant Glas Uchaf. NA/GEN/92/118eArchiveG.B. Mason CollectionDateArchive Number6253264
LevelItemDescriptionFront & side elevations. NA/GEN/92/118eArchiveG.B. Mason CollectionDateArchive Number6253260