NPRNTeitlMath O SaflePerthynasNPRN309618TeitlElan Aqueduct: Outlet, Dulas SyphonMath O Saflen/aPerthynasAssociated withNPRN309620TeitlElan Aqueduct: Maes-y-Gelli Crossing, Nantmel ConduitMath O Saflen/aPerthynasAssociated withNPRN309621TeitlElan Aqueduct: Carmel Bridge, Nantmel ConduitMath O Saflen/aPerthynasAssociated withNPRN309622TeitlElan Aqueduct: Inlet and Overflow Chamber, Clywedog SyphonMath O Saflen/aPerthynasAssociated withNPRN95469TeitlElan Aqueduct, Elan Valley Water Scheme, Birmingham Corporation WaterworksMath O Saflen/aPerthynasPart of
