Archive NumberTitleLevelDescriptionMediumImagesArchive Number6429353Title960276 - Investigators' PhotographsLevelItemDescriptionWest Twll opencast, N face and adit into lower workings, Rhosydd Slate Quarries complex.MediumPhoto.ImagesnArchive Number6429356Title960276 - Investigators' PhotographsLevelItemDescriptionNo2 adit to West Twll opencast, looking S through adit into West Twll, Rhosydd Slate Quarries complex.MediumPhoto.ImagesnArchive Number6429354Title960276 - Investigators' PhotographsLevelItemDescriptionWest Twll opencast, upper W face showing working levels, Rhosydd Slate Quarries complex.MediumPhoto.Imagesn
