Behind the lighthouse is a stone fort that was used as the keeper's quarters after the army departed from it in 1898. The lighthouse has several functions; among them, it is the front light of a range guiding ships into the Chenal du Four, with the Phare de Trézien as the rear light. In another, it is the front light of a range guiding ships into the Chenal de la Helle, with the Phare de Lochrist as the rear light. And in yet another, it also serves as the front light of a range with the St.-Mathieu light.

ARLHS Number: FRA-024
Admirality Number: A1874
NGA Number: 113-0084
Build: 1849
Construction: stone
Height: 20 m
GPS: 48 21 44 / -4 47 24