Archif6148373Teitl97_CS_0620 - RCAHMW Colour Oblique Aerial PhotographsLefelItemDisgrifiadRCAHMW colour slide oblique aerial photograph of Blaen-y-Cwm Quarry, Bro Machno, taken by C.R.Musson on the 25/05/1997CyfrwngPhoto.Delweddaun
Archif6072161TeitlOAI_03_02 - Outsize Additional InformationLefelItemDisgrifiadBlaenycwm Slate Quarry, Bro Machno; set of measured drawings produced by G.R. Jones, July 1991.CyfrwngGraphic.Delweddaun
Archif6422137TeitlWMPT235 - Welsh Mines Preservation TrustLefelBatchDisgrifiadDigital photos of Blaen y Cwm Quarry, with cover sheet.Cyfrwng5 images. Photo, Text.Delweddaun
Archif6022294TeitlAdditional InformationLefelItemDisgrifiadBlaenycwm Quarry, Bro Machno; Report following a project on the quarry by members of Fforwm Plas Tanybwlch 1991 under the direction of G.R. Jones & W.T. Jones. Report compiled in Welsh by G.R. Jones, April 1992.CyfrwngText, Photo, Graphic, Cartographic.Delweddaun
