Tags: Military Structure.
Ouvrage Saint-Gobain is a work (gros ouvrage) of the Maginot Line’s Alpine extension the Alpine Line. The ouvrage consists of one entry block one infantry block one artillery block one observation block and one combination block. Located in Modane France it is just across the valley of the Arc from Ouvrage Saint-Antoine and somewhat to the east of Ouvrage Sapey.The ouvrage covers the approach to the Fréjus Rail Tunnel and the N6 road.
