Boulder from Riant Mont

The Riant Mont boulder is a block of granite that was transported to its current location by an Alpine glacier during the Ice Age . The boulder is located northeast of Vesancy in the Ain department , near the border with Switzerland and the Jura department in France .

The block, about 9.0 meters long and 7.5 meters wide, is about 6.0 meters high. The stone has a bowl and prehistoric grooves .

The boulder has been under protection since 1909 and entered the list of the sites naturels classés de l'Ain as "Bloc erratique de Riant Mont" .

Web links

Commons : Bloc erratique de Riant Mont (Vesancy) - collection of images, videos and audio files