Serre la Plate bunker

The Serre la Plate bunker is one of the elements of the Maginot Line* in the Alps. At L’ubac de Meyronnes, you can also see the vast fort of Roche la Croix and, on the southern slope, the constructions of Saint-Ours Haut and Saint-Ours Bas, all built between 1930 and 1936.
*Line of fortifications built by France along its borders with Belgium, Luxemburg, Germany, Switzerland and Italy from 1928 to 1940.