La Jument

La Jument is a lighthouse standing on a rock formation in the Fromveur Passage off the coast of Ouessant in the Celtic Sea. The granite tower reaches 47.50 meters in height and emits three red flashes every 15 seconds, visible over 10 nautical miles.

Construction began in 1904 after Charles-Eugène Potron donated 400,000 francs to make the dangerous passage safer. The first lighting took place on October 15, 1911, and since 1991 the lighthouse has operated automatically without permanent staff.

The name comes from the Breton word for mare and refers to the rock that looks like a horse head emerging from the sea at low tide. Visitors on passing boats often see waves wrapping around the tower up to the lantern, showing the intense relationship between sea and structure.

The lighthouse is not open to the public, but you can see it from boats that sail around Ouessant Island. The best viewing conditions occur during calm weather and clear air, when the red light signal is widely visible.

During winter 2017 and 2018, scientific measurements recorded waves reaching 24.60 meters in height near the tower. Inside there is an honor room with oak herringbone parquet flooring and a bronze portrait of the donor, commemorating the funding of the project.

Location: Ouessant

Inception: 1911

Elevation above the sea: 42.6 m

Height: 47.5 m

Address: Ushant, France

Opening Hours: Monday-Friday 06:30-17:30

GPS coordinates: 48.42223,-5.13390

Latest update: December 4, 2025 23:43