Archif6152820Teitl995107_49 - RCAHMW Black and White Oblique Aerial PhotographsLefelItemDisgrifiadRCAHMW Black and white oblique aerial photograph of Twyn-yr-oerfel Barrow A, Ynysddu, taken on 13/10/1999 by Toby DriverCyfrwngPhoto.Delweddaun
Archif6062304TeitlMM070 - Cadw Scheduling RecordsLefelSub-groupDisgrifiadFile of Cadw scheduled monument records for Twyn-yr-oerfel Barrow 'a' (MM070) , consisting of scheduling notices, accompanied by Field Monument Warden reports. Files stored in scheduled monument number order.CyfrwngText, Cartographic.Delweddaun
Archif6152819Teitl945080_51 - RCAHMW Black and White Oblique Aerial PhotographsLefelItemDisgrifiadRCAHMW Black and white oblique aerial photograph of Twyn-yr-oerfel Barrow 'A', Ynysddu, taken by C.R. Musson, 26/03/94CyfrwngPhoto.Delweddaun