Ouvrage Col de Garde is a lesser work (petit ouvrage) of the Maginot Line's Alpine extension, the Alpine Line, also called the Little Maginot Line. The ouvrage consists of two entry blocks, one infantry block and one observation block, slightly more than 1 km south of Sainte-Agnès. The ouvrage comprises four combat blocks at an altitude of , and was manned in 1940 by 115 men under the command of Lieutenant Juffet.