Archive NumberTitleLevelDescriptionMediumImagesArchive Number6058983Title8CL_26064_1 - Cadw Registered Files CollectionLevelSub-groupDescriptionClosed registered file, ref. no. 8CL/26064/1, transferred from Cadw, concerning Dorothea quarry, Penygroes, Caerns, engine house and beam pumping engine etc, miscellaneous papers.MediumText.ImagesnArchive Number6058520Title8M_3055_1 - Cadw Registered Files CollectionLevelSub-groupDescriptionClosed registered file, ref. no. 8M/3055/1, transferred from Cadw, concerning Dorothea Quarry engine house and beam pumping engine etc, scheduling. SAM Code CN165MediumText.ImagesnArchive Number6058521Title8M_3055_3_Pt1 - Cadw Registered Files CollectionLevelSub-groupDescriptionClosed registered file, ref. no. 8M/3055/3/Pt1, transferred from Cadw, concerning Dorothea Quarry engine house, and beam pumping engine etc, acquisition. SAM Code CN165MediumText.ImagesnArchive Number6054987TitleANC_3055_2A - Cadw Registered Files CollectionLevelSub-groupDescriptionClosed registered file, ref. no. ANC/3055/2A, transferred from Cadw, concerning Dorothea Quarry engine house, security arrangement SAM Code CN165MediumText.ImagesnArchive Number6513742TitleCSAM_MM_2000_08 - Cadw Scheduled Ancient Monument 35mm NegativesLevelSub-groupDescriptionColour photo surveys of scheduled ancient monuments in Caernarfonshire carried out by M.A. Mason, 2000.MediumTwo sheets. Photo.ImagesnArchive Number6513743TitleCSAM_MM_2000_09 - Cadw Scheduled Ancient Monument 35mm NegativesLevelSub-groupDescriptionColour photo surveys of scheduled ancient monuments in Caernarfonshire carried out by M.A. Mason, 2000.MediumTwo sheets. Photo.ImagesnArchive Number6513744TitleCSAM_MM_2000_10 - Cadw Scheduled Ancient Monument 35mm NegativesLevelSub-groupDescriptionColour photo surveys of scheduled ancient monuments in Caernarfonshire carried out by M.A. Mason, 2000.MediumTwo sheets. Photo.ImagesnArchive Number6513862TitleCSAM_MY_2003_01 - Cadw Scheduled Ancient Monument 35mm NegativesLevelSub-groupDescriptionColour photo surveys of scheduled ancient monuments in Anglesey, Caernarfonshire and Merionethshire carried out by Mike Yates, 2003.MediumOne sheet. Photo.ImagesnArchive Number6508299TitleDGT_10_1 - Tucker CollectionLevelBatchDescriptionColour slides showing views of Dorothea Quarry incline and Engine house and views of Nantlle Quarry, Llyn Nantlle and Tai Nantlle. Images taken in April 1976.Medium1 sheet. Photo.ImagesnArchive Number6212375TitleDH2009_005 - David Howarth CollectionLevelItemDescriptionOne digital colour photograph of Dorothea Engine House, Llanllyfni taken by David Howarth, undated.MediumPhoto.Imagesy
