The Fort des Adelphes, or Fort Richepance, is part of the fortifications of Épinal. It was built near the village of Deyvillers between 1883 and 1885, and was modernized beginning in 1907. It is an example of a Séré de Rivières system fortification. During World War II the fort surrendered to German forces and was then used by the Germans to fire on neighboring forts Longchamp and Dogneville. The fort is presently occupied by an activity of the French Air Force associated with Base aerienne 133 Nancy-Ochey and is not accessible to the public.