Ouvrage Gordolon is a work (gros ouvrage) of the Maginot Line's Alpine extension, the Alpine Line, also known as the Little Maginot Line. The ouvrage consists of one and two infantry blocks at an altitude of . Gordolon was built by Borie contractors at a cost of 21.4 million francs. Work started in November 1931 and was completed in April 1934.