The term 'Chevesché' is a deformation of chevecier-chef, which formerly designated in ecclesiastical terminology the one who supervised the 'chevet' (apse or chancel) of a church and who, by extension, had custody of the treasury.

This defence was assigned to the MAA 280 (Marine Artillerie Abteilung), responsible for prohibiting entry the port of Saint-Nazaire and the mouth of the Loire.

The installation was made at a fixed position with a cannon at the top of the Chemin de la Raize and another halfway down to the sea.

[4] Following the Normandy landings and Operation Cobra, the area remained under German occupation within the Saint-Nazaire pocket and was not liberated until its surrender on 11 May 1945.

[5] The reserve has been the subject of a major rehabilitation program, in order to reduce the gradual destruction of the biotope by tourist activity.