This line is now closed. The Clermont-Ferrand Bordeaux train does not exist any more.
Three AGC sets work between Clermont-Ferrand and Vichy with the Auvergne Volcanos range and the Puy de Dôme in the background.
In the background, there is an old and extinct volcano. What you see is the "Banne d'Ordanche" of the Puy Loup volcano.
Tramway (or streetcar for US people) on rubber tyres, central rail guided