Mont Jalla, Limestone mountain peak in Isère, France
Mont Jalla is a 635-meter limestone summit at the southern edge of the Chartreuse massif. The peak features a flat top and rises above the Grenoble urban landscape.
From 1869 to the early 1900s, a cable car system carried limestone from the summit down to cement factories. Mining operations left a lasting mark on the mountain and the region's industrial past.
The mountaintop hosts a memorial to mountain troops, honoring soldiers who protected French alpine regions. The site reflects how this location held military importance for the nation.
Multiple hiking routes lead to the summit, including a 30-minute walk from the cable car station or longer trails from Col de Vence. Routes vary in difficulty depending on your starting point and preferred pace.
The mountain contains 18 interconnected underground galleries from limestone mining. These hidden caves remain as reminders of the time when workers extracted stone to supply local cement production.
Location: Grenoble
Location: La Tronche
Location: Saint-Martin-le-Vinoux
Elevation above the sea: 635 m
Made from material: limestone
GPS coordinates: 45.20399,5.72423
Latest update: December 6, 2025 17:43
Around Grenoble, the mountains begin at the edge of the sidewalks. It only takes a few steps to leave the streets and reach a path that climbs toward the trees. Here, nature is never far away: it surrounds the city, observes it, invites it out. You climb the Bastille hill, cross the Chartreuse...
Bastille
566 m
Casamaures
650 m
Musée dauphinois
1 km
Grenoble Archaeological Museum
898 m
Pont de Chartreuse
985 m
The Lion and Serpent fountain
1.1 km
Mémorial national des troupes de montagne
6 m
CCSTI de Grenoble
925 m
Musée des troupes de montagne
567 m
Musée Dauphinois
1 km
Porte Saint-Laurent
892 m
Citadel bridge
1.1 km
Quai de la Graille
1.1 km
Via ferrata de Grenoble
986 m
Sainte-Marie-d'en-Haut
1 km
Belvédère Vauban
594 m
Acrobastille
567 m
War memorial at the Bastille
419 m
Scenic viewpoint
37 m
Grotte de Mandrin
300 m
Montée des Dauphins
963 m
Croix de Quinsonas
507 m
Via ferrata de Grenoble
1.1 km
Scenic viewpoint
678 m
Église Saint-Martin de Saint-Martin-le-Vinoux
606 m
Terrasse des Géologues
593 m
Quai Perrière
1.1 km
Fort Rabot
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