It was termed a réduit for its position surrounded by several smaller batteries.

Following this defeat, France put in place the Séré de Rivières system of fortifications to modernize its fortifications and to adjust its defensive strategy to the new borders imposed in 1871.

OAS members Albert Dovecar and Claude Piegts were executed at the Fort du Trou-d'Enfer in 1962.

[2] The fort is presently assigned to the French National Forests Office and is not open to the public.

The ONF operates a pheasant hatchery on the site of the fort for the grounds of the nearby French Presidential retreat.