Fortress
Fort l'Écluse
🇫🇷 France · 13th century
Fort l'Écluse, or the Fort de l'Écluse, is a military fort in Léaz, Ain, close to Collonges in Eastern France. It commands the Rhône Valley as a natural entrance into France from Switzerland between the Vuache and the Jura Mountains.
The fort, which was established by a Duke of Savoy, was completed by Sébastien Le Prestre de Vauban during the reign of King Louis XIV. It was destroyed by the Austrians in 1815, but rebuilt by the French; at the same time it was considerably strengthened and heightened. The high-road intersects a portion of this fortification.
Text adapted from “Fort l'Écluse” on Wikipedia, CC BY-SA 4.0.
Fort l'Écluse ranks #4,477 of 8,764 worldwide in the atlas's castle fame ranking, and #367 of the 675 mapped in France. Founded c. 1225, it is older than 75% of the atlas's dated landmarks — one of 906 atlas entries founded in the 13th century. Its Wikipedia articles were opened 2,563 times in the last 60 days, more than 74% of the atlas. Wikidata records about 30,000 visitors in 2009. 5 more atlas landmarks stand within 25 km. The nearest day-trip guide is Geneva, 22 km away. See how France compares in the castle statistics.
View on the interactive castle map →Frequently asked questions
Where is Fort l'Écluse?
Fort l'Écluse stands in France, at 46.12083°, 5.89278°.
When was Fort l'Écluse built?
The atlas dates its founding to c. 1225. Earlier structures may have stood on the site; this is the earliest documented founding year.
How famous is Fort l'Écluse?
In this atlas's fame ranking: #4,477 of 8,764 worldwide, and #367 in France. Fame here combines how many Wikipedia language editions cover a landmark with how many people read them.
What is the nearest castle to Fort l'Écluse?
Dardagny Castle, about 11 km away.
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