YSTALYFERA AQUEDUCT AND WEIR, SWANSEA CANAL
UPPER CLYDACH AQUEDUCT AND OVERFLOW,...
LOWER CLYDACH AQUEDUCT, CLYDACH AQUEDUCT,...
TENNANT CANAL: RIVER NEATH AQUEDUCT;ABERDULAIS...
Vyrnwy filtration tower, 1998
Aqueduct near Llangollen, Denbighshire, N.W
Pontcysyllte Aqueduct, World Heritage Site
Pont Y Cyslte Aqueduct, north Wales
Vale of Llangollen from Barbers hill
Chirk Aqueduct, Denbighshire
Chirk Viaduct - Shrewsbury & Chester Railway
Vale of Llangollen
Chirk aqeduct i.e. aqueduct, Denbighshire
Chirk aqueduct, north Wales
Aqueduct on the Taff, Glamorganshire
Dee Viaduct
L'Aqueduc en Fonte de Pont-y-Cysylte
Chirk aqueduct, Denbighshire
The Dee viaduct, vale of Llangollen 1861
Montgomery canal at Welshpool, c. 1890
Pipeline construction, Elan Valley waterworks,...
