Map of the N.M.V.B./S.N.C.V. in and around Liège (city and province) in 1940 (non-electrified lines; green and yellow when out of the province) and 1951 (electrified lines; pink and orange when out of the province. Black = N.M.B.S./S.N.C.B. (railway).

https://nl.wikipedia.org/wiki/Buurtspoor...ie_Luik