According to the book Les Trains du Mont-Blanc, vol 1, by Jean-Pierre Gide and José Banaudo, there were 6 sections equipped with third Fell rail:
- 2155 m between Chedde and Servoz (90 ‰)
- 1386 m between Servoz and Vaudagne (80 ‰) - 1580 m between Les Tines and Argentière (70 ‰) - 1615 m between Argentière and Montroc-Le Planet (70 ‰) - 530 m between Tunnel des Montets and Le Buet (70 ‰) - 504 m between Le Buet and Vallorcine (70 ‰)
Rolling stock purchased in 1958 (Z600) was not equipped with Fell braking equipment. The Fell third rail was removed in the 1980s.
