Rhif ArchifTeitlLefelDisgrifiadCyfrwngDelweddauRhif Archif6204599TeitlLGN2007360 - RCAHMW Uplands Initiative Llanegryn Survey ArchiveLefelItemDisgrifiadDigital colour photograph of Pen-y-Crug stone quarry IV taken on 23/08/2007 by K. Laws during the Llanegryn Upland Survey undertaken by Engineering Archaeological Services Ltd.CyfrwngPhoto.Delweddauy