Mont Outheran (1,676 m) is a mountain of the

Chartreuse Mountains The Chartreuse Mountains (french: massif de la Chartreuse ) are a mountain range in southeastern France, stretching from the city of Grenoble in the south to the Lac du Bourget in the north. They are part of the French Prealps, which continue a ...

in the

French Prealps The French Prealps (french: Préalpes) are a group of subalpine mountain ranges of medium elevation located immediately west of the French Alps. They roughly stretch from Lake Geneva southwest to the rivers Isère and Drôme; east to a line runn ...

Savoie Savoie (; Arpitan: ''Savouè'' or ''Savouè-d'Avâl''; English: ''Savoy'' ) is a department in the Auvergne-Rhône-Alpes region, Southeastern France. Located in the French Alps, its prefecture is Chambéry. In 2019, Savoie had a population of ...

France France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of Overseas France, overseas regions and territories in the Americas and the Atlantic Ocean, Atlantic, Pacific Ocean, Pac ...

Geography

The Mont Outheran is a narrow plateau, lying several kilometers in the north-south direction between the

Col du Grapillon The Col du Grapillon (or col de Grapillon) is a mountain pass located above sea level in the Chartreuse Mountains between La Cochette () to the south, and Mont Outheran () to the north Access The pass is available only to hikers. It connects ...

at the south and the Col du Planet at the north. It is surrounded by cliffs on all sides. The west cliff defines the territory of the commune of

Saint-Thibaud-de-Couz Saint-Thibaud-de-Couz () is a commune of the Savoie department in the Auvergne-Rhône-Alpes region in south-eastern France. Geography The village of Saint-Thibaud-de-Couz is located in the middle valley of the Hyères between Mont Grêle (1425 m) ...

. Much of Mont Outheran is wholly owned by the township. The Mont Outheran consists of urgonian

limestone Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms whe ...

. Mountains of Savoie Mountains of the Alps Chartreuse Mountains {{Savoie-geo-stub