NPRNTeitlMath O SaflePerthynasNPRN96459TeitlElan Valley Water Scheme, Birmingham Corporation Waterworks, Cwm ElanMath O Saflen/aPerthynasPart ofNPRN32527TeitlElan Aqueduct: Foel Valve Tower; Garreg-Ddu Reservoir Tower, Foel TunnelMath O Saflen/aPerthynasAssociated withNPRN752TeitlGarreg-Ddu Dam, Elan Valley Water Scheme;Carreg Ddu Viaduct and Submerged DamMath O Saflen/aPerthynasAssociated withNPRN261172TeitlDol-y-Mynach Tunnel, North Outlet, Garreg-Ddu Reservoir, Elan Valley Water SchemeMath O Saflen/aPerthynasAssociated withNPRN32518TeitlCaban Coch Reservoir, Elan Valley Water SchemeMath O Saflen/aPerthynasAssociated with
