One of the railway tunnels beside the Mawddach estuary near Barmouth Type Item Uploaded by ceinwsarchive
Entrance to a lower level tunnel at Esgairfoeleirin larger quarry Type Item Uploaded by ceinwsarchive
Fred Balde and George Sims at Dock Street, Penarth. Type Item Uploaded by Vale of Glamorgan Libraries
A55 ROAD TUNNEL, RIVER CONWY Type Item Uploaded by Royal Commission on the Ancient and Historical Monuments of Wales
WHITEHOUSE TUNNEL SOUTH PORTAL, LLANGOLLEN CANAL Type Item Uploaded by Royal Commission on the Ancient and Historical Monuments of Wales
WHITEHOUSE TUNNEL NORTH PORTAL, LLANGOLLEN CANAL Type Item Uploaded by Royal Commission on the Ancient and Historical Monuments of Wales
ASHFORD TUNNEL, BRECKNOCK AND ABERGAVENNY CANAL Type Item Uploaded by Royal Commission on the Ancient and Historical Monuments of Wales