Rhif ArchifTeitlLefelDisgrifiadCyfrwngDelweddauRhif Archif6429353Teitl960276 - Investigators' PhotographsLefelItemDisgrifiadWest Twll opencast, N face and adit into lower workings, Rhosydd Slate Quarries complex.CyfrwngPhoto.DelweddaunRhif Archif6429356Teitl960276 - Investigators' PhotographsLefelItemDisgrifiadNo2 adit to West Twll opencast, looking S through adit into West Twll, Rhosydd Slate Quarries complex.CyfrwngPhoto.DelweddaunRhif Archif6429354Teitl960276 - Investigators' PhotographsLefelItemDisgrifiadWest Twll opencast, upper W face showing working levels, Rhosydd Slate Quarries complex.CyfrwngPhoto.Delweddaun
