A military bunker of the Second World War period, identified in existing records as a 'soute à munitions' (ammunition storage). The structure is located in the region of Brittany, France, at the provided coordinates. While the broader area of France contains numerous examples of German military fortifications from the war, including the famous V-2 rocket complexes of La Coupole and the Blockhaus d'Éperlecques in the Pas-de-Calais department, the specific site at these coordinates is not directly referenced in the available historical sources.
Its precise role, construction details, and current condition remain unconfirmed by the provided information. The location suggests it may have been part of the wider German defensive or logistical infrastructure in occupied France during the conflict.