Rocher de Lorzier, Mountain summit in Chartreuse massif, Isère, France.
Rocher de Lorzier rises to 1,838 meters above sea level, formed primarily of limestone rock that creates steep escarpments and rocky outcrops throughout the Chartreuse massif in the French Alps.
The limestone formation of Rocher de Lorzier originated millions of years ago from marine sedimentary deposits, when this mountainous region was covered by ancient seas that left geological traces visible today.
The name Lorzier comes from the mountain itself, and the summit lies within the Chartreuse Regional Natural Park, on the western edge of the massif above Pommiers-la-Placette. Hikers reach it on foot from that commune, and the surrounding forests and limestone slopes are part of the protected Chartreuse landscape.
The climb starts from the commune of Pommiers-la-Placette, on the western edge of the Chartreuse massif. The summit lies about ten kilometres south-east of Voiron and some fifteen kilometres north of Grenoble. The mountain sits within the Chartreuse Regional Natural Park.
The summit lies on the western edge of the Chartreuse massif, within the Chartreuse Regional Natural Park, and is climbed from the commune of Pommiers-la-Placette. It stands about ten kilometres south-east of Voiron and some fifteen kilometres north of Grenoble.
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