Pen-y-Garreg reservoir, dam and valve tower. Oblique aerial photograph taken during the Royal Commission's programme of archaeological aerial reconnaissance by Toby Driver on 3rd June 2015.Opsiynau lawrlwytho a prynu
NPRNTeitlMath O SafleArchifauDelweddauNPRN32534TeitlPen-y-Garreg Dam; Pen-y-Gareg Dam, Elan Valley Water SchemeMath O SafleARGAEArchifau52Delweddau35NPRN261210TeitlPen-y-Garreg Dam Valve Tower, Elan Valley Water SchemeMath O SafleTŴR Y FALFIAUArchifau26Delweddau17NPRN309537TeitlPen-y-Garreg Reservoir, Elan Valley Water SchemeMath O SafleCRONFA DDŴRArchifau25Delweddau22