Ffestiniog Railway. 1966/08/xx, 02. The section of the Ffestiniog Railway between Dduallt and Moelwyn Tunnel and on to Tanygrisiau station was abandoned after the reservoirs for the pumped storage scheme flooded the trackbed beyond the tunnel. This is the view looking towards the tunnel entrance from the Dduallt end. A new "deviation" line was built around the abandoned section, this now runs at a higher level to the left of this formation. August 1966. Slide No. 2395.