Puy de Dome

Puy de Dôme (US: , French: [pɥi də dom] (listen); Auvergnat: Puèi Domat [ˈpœj duˈma(t)] or Puèi de Doma [ˈpœj də ˈdumɔ]) is a lava dome and one of the youngest volcanoes in the Chaîne des Puys region of Massif Central in central France. This chain of volcanoes including numerous cinder cones, lava domes and maars is far from the edge of any tectonic plate.

The Temple of Mercury at Puy de Dôme is a Gallo-Roman trachyte temple built in the 2nd century at the summit of the dome. It replaced a 1st-century arkose temple on the same site, which was apparently too small to accommodate the many pilgrims who visited. Its remains were revealed by excavation campaigns in 1875 and at the turn of the century.