Chablais Geopark, UNESCO Global Geopark in Haute-Savoie, France

Chablais Geopark is a geological protected area between Lake Geneva and Mont Blanc featuring rock formations from different periods of Earth's history. The site encompasses numerous small towns and natural structures that reveal how the Alps were shaped over time.

The Chablais belonged to the Abbey of Saint-Maurice before passing to the House of Savoy in 1032. Bern took the area east of the Rhône in 1475 and, with Valais, the rest in 1536; the treaties of Lausanne (1564) and Thonon (1569) returned most of it to Savoy, while Monthey stayed with Valais. Francis de Sales and Capuchin preachers brought the Valais part back to Catholicism between 1594 and 1598.

The region produces three protected cheeses named Abondance, Reblochon, and Chevrotin that reflect how local farming communities have adapted to mountain life. These products show traditional methods passed down through families and rooted in the landscape itself.

The site features marked walking trails and digital guides that explain how Alpine landscapes formed over time. Guided tours are available for visitors who want deeper knowledge about the geological features.

The Chablais name comes from Latin caput lacus, "head of the lake", for the region at Lake Geneva's southern end. The highest point of the wider Chablais is the Haute Cime of the Dents du Midi, at 3258 m in the Valais part of the Savoy Alps.