From the height of its 1465 metres, the Puy de Dôme towers over the other 80 volcanoes forming the Chaîne des Puys.
Formed in 3 stages 11 000 years ago, the Puy de Dôme was the centre of many human activities.
Mercury was worshipped here from the first to the twelfth century; a chapel to Saint Barnabé was built here.
Blaise Pascal studied atmospheric pressure here and a little over two centuries later a meteorology observatory was built.
In 1952, the pack of the Tour de France climbed it.
Today, priority is given to the battle against erosion and welcoming the numerous tourists.