Archif6330662TeitlAP_2006_2230 - RCAHMW Colour Oblique Digital Aerial PhotographsLefelItemDisgrifiadRCAHMW colour oblique aerial photograph of Porth Mawr Garden, Crickhowell. Taken on 13 July 2006 by Toby Driver.CyfrwngPhoto.Delweddauy
Archif6064762Teitl965103_55 - RCAHMW Black and White Oblique Aerial PhotographsLefelItemDisgrifiadRCAHMW black and white oblique aerial photograph of Porth Mawr Garden, Crickhowell, taken by C R Musson, 24/07/1996.CyfrwngPhoto.Delweddaun
Archif6502087TeitlDS2018_153_002 - Investigators' Digital PhotographyLefelItemDisgrifiadCrickhowell including Porth Mawr House, Garden, Coach House and Gate. Oblique aerial photograph taken during the Royal Commission's programme of archaeological aerial reconnaissance by Toby Driver on 21st April 2015CyfrwngPhoto.Delweddauy
Archif6511308TeitlCSAM_IH_2008_06 - Cadw Scheduled Ancient Monument 35mm NegativesLefelSub-groupDisgrifiadColour photo surveys of scheduled ancient monuments in Breconshire carried out by Ian Halfpenney, 2008.CyfrwngTwo sheets. Photo.Delweddaun