Calotte Saint-Joseph

Calotte Saint-Joseph is a sandstone summit in Langonnet and the highest point in Morbihan at about 292 meters. From this position you can see across large sections of Brittany's landscape with its fields, forests, and distant hills.

The summit formed in ancient geological history as part of the Armorican Massif and shows structures from tectonic movements. The sandstone developed over millions of years and was later shaped to its current form through natural processes.

The site takes its name from Saint Joseph and reflects the religious heritage of the region. The sandstone formations show marks left by centuries of weathering from wind and water.

The summit is accessible via a hiking path that runs about 63 kilometers and connects several neighboring towns. Along the way you can find lodging in the surrounding villages if you want to stay for multiple days.

The summit offers good chances to observe mosses and lichens growing on the old sandstone, showing the history of geological erosion. These organisms are a sign of the long time the hill has been exposed to natural processes.

Location: Morbihan

Elevation above the sea: 292 m

Made from material: sandstone

GPS coordinates: 48.17323,-3.44539

Latest update: December 14, 2025 20:31