| Tremblois-lès-Rocroi–Petite-Chapelle | |
| Gauge: | Until 1903: after 1903: |
| Linelength: | 17sigfig=2NaNsigfig=2 |
| Map: | Former route of the track (purple) Time table of the Chemins de fer départementaux des Ardennes, May 1914[1] |
The Tremblois-lès-Rocroi–Petite-Chapelle railway was a 17sigfig=2NaNsigfig=2 long narrow gauge and later metre gauge railway in the north of France, the first section of which was put into service in 1895. It operated until 1950.[2]
The first, 12 km long section from Tremblois-lès-Rocroi to Rocroi line was built by the Chemins de fer départementaux des Ardennes in 1897 as a narrow-gauge railway with the unusual gauge of 800 mm. In 1903, following a change in the law, the line was converted to metre gauge. It was extended across the border to Petite-Chapelle in Belgium in 1905 and operated until 1950.[2]