La Plagne Live Cam

Geological Origins and Early Recognition

The Roche de Moi, a prominent rocky outcrop rising to 2,330 meters above sea level in the Tarentaise Valley, owes its origins to the Alpine orogeny that began some 35 million years ago. Tectonic thrusting folded Jurassic and Cretaceous limestones into steep anticlines, exposing resistant dolomitic layers that now form the spire-like promontory known locally as “Roche de Moi.” Search terms such as “La Plagne geology,” “Alpine orogeny history,” and “dolomite rock formation” guide geology enthusiasts to stratigraphic cross-sections and academic papers illustrating the mountain’s sedimentary layering and fossil-rich marl bands.