Their special trains operate, on selected dates throughout the year, over three routes in the area, Glovelier to Saignelégier, Saignelégier to La Chaux-de-Fonds and "The Hard Climb" from Tavannes to la Noirmont.
The group owns two metre-gauge Mallet type locomotives which were purchased from Portugal in 1992 and were restored in Germany, one in 1993, the other six years later, and a selection of passenger rolling stock which is used on their special trains. They are restoring a "Krocodil" locomotive.
- No. E206 : 0-4-0 + 0-4-0, Outside Cylinders (4), Built Henschel & Sohnin, 1913. Mallet-type compound locomotive delivered to Portuguese railways (CP) and withdrawn in 1985. It was restored at Meiningen in Germany and returned to traffic in 1993.
- No. E164 : 0-4-0 + 0-4-0, Outside Cylinders (4), Built Henschel & Sohnin, 1905. Mallet-type compound locomotive delivered to Portuguese Railways (CP) and withdrawn in 1978. It was restored at Meiningen in Germany and returned to traffic in 1999.
- No. E4004 : Class Gem122, a "Krocodil" type locomotive built for Spanish Railways. This was undergoing restoration in 2007.