Llandygai Tunnel
| Nearby stations Bangor Felin Hen Halt Tregarth Menai Bridge Bethesda Treborth Britannia Bridge Aber [C and H R] Llanfair Pwllgwyngyll Port Dinorwic [1st] Port Dinorwic [2nd] Pontmythallt Penllyn Cwm-y-Glo Llanfairfechan | Bethesda Junction Bangor Tunnel Belmont Tunnel Tregarth Tunnel Aber Watertroughs Vaynol Tunnel Britannia Tubular Bridge Penrhyn Quarry Port Sidings Junction Dinorwic Slate Quarries Penclip Avalanche Tunnel Carnarvon Tunnel Carnarvon No 1 Junction Tourist/other Penryhn Caslte Museum Menai Straits |
| Location names in dark blue are on the same original line. | |
