Portal of railway tunnel, opened 1834 for the Newcastle-Carlisle line. Engineer Francis Giles. Squared stone with tooled and margined dressings, brick soffit. Round arch with flat-coped wall above; flanking wing walls have similar coping end in square piers with low pyramidal caps.

Farnley Scar Tunnel (170 yards long) was one of two tunnels on the Newcastle- Carlisle line, the earliest cross-country railway in the world. The tunnel was bypassed by the adjacent cutting in the later C19, but remains in good condition.