Fort L'Ecluse, Leaz

4.4
#6 of 16 in Historic Sites in Ain
The Fort l'Écluse is close to the village of Collonges, Ain in Eastern France. It commands the Rhone valley and is a natural entrance into France from Switzerland between the Vuache hills and the Jura Mountains.The fort was founded by a Duke of Savoy, and completed by Vauban in the reign of Louis XIV. It was destroyed by the Austrians in 1815, but was rebuilt by the French, and at the same time considerably strengthened and heightened. The high-road intersects a portion of this fortification.Description and constructionThe lower fort, near the level of the Rhône, was rebuilt between 1816 and 1828. The route national 84 passed through the fort until 1939 when it was relocated to a tunnel through the rock behind the fort, defended by a casemate in the tunnel built as part of the Maginot Line fortification program. The casemate was intended to receive 47mm anti-tank guns, but was never equipped. It is linked to the lower fort by a tunnel. The Fort l'Écluse was the largest component of the otherwise weakly fortified Defensive Sector of the Rhône.The upper fort is 200m above the lower fort. Its location allows the upper fort to control the valley, including the railroad viaduct, and to protect the lower fort. It was built between 1834 and 1848. Today, the lower fort and the subterranean steps and casemates cut into the rock above it, up to and including terraces just below the upper fort, are open during the summer months for visiting, however the upper fort is not currently safe for visitors. Furthermore, a moderately difficult via ferrata exists which takes climbers from the lower fort to the upper fort by traversing the rocky hillside. In addition, there are many hiking trails in the area which allow hikers access to the upper fort.
Make Fort L'Ecluse part of your personalized Leaz itinerary using our Leaz online day trip planner .
Source
Create an itinerary including Fort L'Ecluse
map
Fort L'Ecluse Reviews
Rate this attraction
TripAdvisor Traveler Rating
TripAdvisor Traveler Rating 4.0
73 reviews
Google
4.4
TripAdvisor
  • Well worth a visit. Spectacular views. We went on a really bad day. If it would have been a good day and open for a tour it would have been a lot better  more »
  • A very nice tour full of history! A superb fort built on and into the rock hillside. There is a beautiful via ferrata has done and also a challenge of 830 works to climb to reach the top of the fort that offers a great seen on a mount (from 1000 meters) and also on the Rhône river at the foot of the fort. I recommend
    View original
  • On the road when we admire the whole strong quickly realize that he climbs the rock wall of the mountain. Inside after the first heights can climb to the top and are more than 800 steps that give right to a climber certificate steps but at the top go back without being able to see what a little disappointed.
    View original
Google
  • Absolutely fantastic place. Plan minimum 2 hours as climbing the upper fort is not an eye blink. Views unforgettable. A must to see while being around.
  • Great museum. Bring your old, forgotten French knowledge!
  • Great museum, fantastic view to Savoie. Very interesting and educational, guide keep it nice and clean. DO recommend to take the smaller road and visit
  • The Via Ferrata is just a short and easy drive from Geneva. When you go through the tunnel turn left immediately. There is a parking. From there you have a five minute walk to the base of the Via Ferrata. The via ferrata is a pleasant and easy via for those with experience. There are two or three moments when novices may be afraid. At these points be patient and courteous with them. Offer them a drink and snack to recover some energy before moving on. Go with an experienced individual. People have been trapped on this via ferrata so do not underestimate it.
  • Amazing place, great view.
Places to stay near Fort L'Ecluse

Plan your trip to Leaz

  • Get a personalized plan

    A complete day-by-day itinerary
    based on your preferences
  • Customize it

    Refine your plan. We'll find the
    best routes and schedules
  • Book it

    Choose from the best hotels
    and activities. Up to 50% off
  • Manage it

    Everything in one place.
    Everyone on the same page.

Plans to Fort L'Ecluse by other users

51 days in Lyon BY A USER FROM AUSTRALIA September, popular PREFERENCES: September ATTRACTION STYLE: Popular PACE: Medium 60 days in Middle East, Europe, Canada & United States BY A USER FROM SAUDI ARABIA July, kids, culture, outdoors, relaxing, beaches, historic sites, museums, wildlife, slow & easy, popular PREFERENCES: July, kids, culture, outdoors, relaxing, beaches, historic sites, museums, wildlife ATTRACTION STYLE: Popular PACE: Slow & easy 8 days in Lyon BY A USER FROM POLAND June, culture, outdoors, historic sites, museums, popular PREFERENCES: June, culture, outdoors, historic sites, museums ATTRACTION STYLE: Popular PACE: Medium 15 days in Gex BY A USER FROM PHILIPPINES July, culture, romantic, historic sites, museums, fast-paced, popular PREFERENCES: July, culture, romantic, historic sites, museums ATTRACTION STYLE: Popular PACE: Fast-paced 20 days in Gex BY A USER FROM PHILIPPINES July, culture, romantic, historic sites, museums, popular PREFERENCES: July, culture, romantic, historic sites, museums ATTRACTION STYLE: Popular PACE: Medium 3 days in Annecy BY A USER FROM UNITED STATES October, romantic, historic sites, shopping, popular & hidden gems PREFERENCES: October, romantic, historic sites, shopping ATTRACTION STYLE: Popular & hidden gems PACE: Medium 19 days in Lyon BY A USER FROM MEXICO May, relaxing, historic sites, slow & easy, hidden gems PREFERENCES: May, relaxing, historic sites ATTRACTION STYLE: Hidden gems PACE: Slow & easy 46 days in Europe BY A USER FROM CANADA July, culture, relaxing, romantic, beaches, historic sites, museums, shopping, slow & easy, popular & hidden gems PREFERENCES: July, culture, relaxing, romantic, beaches, historic sites, museums, shopping ATTRACTION STYLE: Popular & hidden gems PACE: Slow & easy 44 days in Taize BY A USER FROM INDONESIA June, culture, outdoors, relaxing, historic sites, popular PREFERENCES: June, culture, outdoors, relaxing, historic sites ATTRACTION STYLE: Popular PACE: Medium 8 days in Lyon BY A USER FROM JAPAN August, culture, relaxing, historic sites, popular PREFERENCES: August, culture, relaxing, historic sites ATTRACTION STYLE: Popular PACE: Medium 12 days in Chambery BY A USER FROM SINGAPORE May, culture, historic sites, museums, hidden gems PREFERENCES: May, culture, historic sites, museums ATTRACTION STYLE: Hidden gems PACE: Medium 18 days in Lyon BY A USER FROM INDIA May, culture, outdoors, relaxing, romantic, beaches, historic sites, museums, shopping, wildlife, popular PREFERENCES: May, culture, outdoors, relaxing, romantic, beaches, historic sites, museums, shopping, wildlife ATTRACTION STYLE: Popular PACE: Medium
View more plans