The Cavan and Leitrim Railway was a 3 ft (914 mm) narrow-gauge railway that operated in the south of County Leitrim and the north-west of County Cavan on the northern edge of the Midlands in Ireland; it ran from 1887 until 1959.[1][2] Unusually for Ireland, this 3 ft (914 mm) narrow gauge line survived on coal traffic, from the mine at Arigna, although the original main line was constructed principally for traffic in cattle. It outlived most of the other Irish narrow-gauge lines, giving a further lease of life to some of their redundant engines.