Lon Eifion
Coordinates: 53°08′42″N 4°16′08″W / 53.145°N 4.269°W Lôn Eifion is part of Lôn Las Cymru, the Welsh National Cycle Route, which is about 400 km (250 mi) long.
Lôn Eifion is the section which runs for 20 km (12 mi) from Caernarfon to Bryncir along most of the former Caernarfon to Afon Wen line. This line was that of the Carnarvonshire Railway (later LNWR and London, Midland and Scottish Railway), and joined with the Cambrian Coast Line at Afon Wen. Running alongside for part of the way is the trackbed of the old Nantlle Tramway, along which horse-drawn trams carried slates from the quarries in the Nantlle Valley to the port at Caernarfon from where they were exported.
For most of the first 5 km (3.1 mi) from Caernarfon, the line of Lôn Eifion runs alongside that of the Welsh Highland Railway.
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