Carnforth MPD (Motive Power Depot) is a former LMS railway depot located in the town of Carnforth, Lancashire.
Developed in 1944 on the site of the former London and North Western Railway (LNWR) depot, its late construction in the steam locomotive age resulted in its long-term use and conservation by British Railways. Targeted as part of a preservation scheme, when this failed it was developed as major visitor attraction Steamtown Carnforth. Today, closed as a museum, it acts as the major national operational base of the West Coast Railway Company.
Carnforth was not an important or well developed village before the Victorian era railway age, but was geographically strategically located to make it so. While supplies of lime stone made it interesting, access into Westmorland, the Lake District and the coast of Cumberland beyond made it an ideal transport hub point.
Carnforth railway station opened as a single platform wooden structure for access to the then village, but was made into a permanent stone structure by the Lancaster and Carlisle Railway (L&CR) in 1846. In 1857 it became a junction station when the Ulverston and Lancaster Railway used it, as did the Furness Railway soon afterwards after taking control of the ULR. In the 1870s architect William Tite redesigned the station and layout, allowing Midland Railway trains access. The regionally competing London and North Western Railway (LNWR) took over the L&CR, and created a jointly operated station.