A military structure located near Colmar, France, in the Grand Est region. The provided coordinates place it in an inland area of northeastern France, away from the coastal Atlantic Wall fortifications. The web search results do not contain specific information confirming the identity, history, or purpose of this particular bunker.
References to French nuclear weapons and the Watten bunker (Blockhaus d'Eperlecques) in the search results pertain to different locations and contexts and cannot be directly linked to this site without further evidence.