Ouvrage Valdeblore is a lesser work (petit ouvrage) of the Maginot Line's Alpine extension, the Alpine Line. The ouvrage consists of one entry block, one infantry artillery block and one observation block at an altitude of . Valdeblore was built starting in November 1930 by Poiljeux contractors, and was completed by Thorrand et Cie in April 1933 at a cost of 1.6 million francs.