High Quality Content by WIKIPEDIA articles! The Cumbrian Coast Line is a rail route in North West England, running from Carlisle to Barrow-in-Furness via Workington and Whitehaven. The line forms part of Network Rail route NW 4033, which continues (as the Furness Line) via Ulverston and Grange-over-Sands to Carnforth, where it connects with the West Coast Main Line.