The Settle–Carlisle line is a 73-mile-long (117 km) main railway line in northern England. The route, which crosses the remote, scenic regions of the Yorkshire Dales and the North Pennines, runs between Settle Junction, on the Leeds–Morecambe line, and Carlisle, near the English-Scottish borders. The historic line was constructed in the 1870s and has several notable tunnels and viaducts such as the imposing Ribblehead.

The Yorkshire Dales are a series of valleys, or dales, in the Pennines, an upland range in England. They are mostly located in the ceremonial county of North Yorkshire, but extend into Cumbria and Lancashire; they were historically entirely within Yorkshire. The majority of the dales are within the Yorkshire Dales National Park, created in 1954. The exception is the area around Nidderdale, which forms the separate Nidderdale Area of Outstanding Natural Beauty.