This range guides ships into Port-la-Chaîne, a small port at the eastern entrance to the Jaudy or Tréguier estuary. This light is synchronized with the rear light (FRA-472).

ARLHS Number: FRA-425
Admirality Number: A1762
NGA Number: 114-7836
Build: 1863
Construction: stone
Height: 5 m
GPS: 48 52 / -3 08