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.
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