NPRNTitleType Of SiteArchivesImagesNPRN308084TitleTy'n-y-Garth Slate Works, EglwysfachType Of SiteSLATE QUARRYArchives1Images0NPRN308083TitleCardigan Slate Works, EglwysfachType Of SiteSLATE QUARRYArchives3Images1NPRN284147TitlePonterwyd Quarry MineType Of SiteMINEArchives5Images4
