The Four à Chaux fortress - Maginot Line
Description

Designed to defend the Valley of the Sauer, the fortress of the Four à Chaux was built on high ground dominating the village of Lembach. The name comes from a lime kiln that was on the site.
The 5km of galleries are 30m below the surface. The garrison was made up of 24 officers and 600 men. They belonged to fortress infantry (RIF), artillery and engineering regiments.They were mobilised on a number of occasions before occupying the fortress permanently on the outbreak of WW2 at the end of August 1939. As the fortress was not directly attacked between September 39 and May 40, they kept themselves occupied and took over the cattle abandoned by the evacuated population and left wandering in the streets of Lembach.
The visitor is shown the living conditions of the garrison, visiting the dormitories, sanitary arrangements, kitchens as well as the hospital. The fortress came under attack by Stukas in June 1940. Despite the withdrawal of anti-aircraft defences, resistance was firm and lasted five days after the armistice signed on 26 June. The garrison surrendered with the honours of war on 2 July after special negotiations at Weisbaden.
The fort was then occupied by the German army who took everything useful for the construction of the Atlantic Wall. Tests with explosives gasses under pressure did considerable damage.
The layout of the fort is similar to others in the Maginot Line although the entrance for the troops was 24m higher than the entrance for the munitions. As a result the fortress is uniquely equipped with an incline with a railway that makes it possible to convey munitions to the galleries at a higher level. Have a great visit and don't forget to wear good walking shoes and warm cloathing (13°).
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From 01/04/2025 to 30/04/2025Monday from 13:30 to 15:30Monday from 14:00 to 16:00Monday from 15:30 to 17:30Monday from 16:00 to 18:00Tuesday from 13:30 to 15:30Tuesday from 14:00 to 16:00Tuesday from 15:30 to 17:30Tuesday from 16:00 to 18:00Wednesday from 13:30 to 15:30Wednesday from 14:00 to 16:00Wednesday from 15:30 to 17:30Wednesday from 16:00 to 18:00Thursday from 13:30 to 15:30Thursday from 14:00 to 16:00Thursday from 15:30 to 17:30Thursday from 16:00 to 18:00Friday from 13:30 to 15:30Friday from 14:00 to 16:00Friday from 15:30 to 17:30Friday from 16:00 to 18:00Saturday from 13:30 to 15:30Saturday from 14:00 to 16:00Saturday from 15:30 to 17:30Saturday from 16:00 to 18:00Sunday from 13:30 to 15:30Sunday from 14:00 to 16:00Sunday from 15:30 to 17:30Sunday from 16:00 to 18:00From 01/05/2025 to 30/09/2025Monday from 10:00 to 12:00Monday from 10:30 to 12:30Monday from 13:30 to 15:30Monday from 14:00 to 16:00Monday from 15:30 to 17:30Monday from 16:00 to 18:00Tuesday from 10:00 to 12:00Tuesday from 10:30 to 12:30Tuesday from 13:30 to 15:30Tuesday from 14:00 to 16:00Tuesday from 15:30 to 17:30Tuesday from 16:00 to 18:00Wednesday from 10:00 to 12:00Wednesday from 10:30 to 12:30Wednesday from 13:30 to 15:30Wednesday from 14:00 to 16:00Wednesday from 15:30 to 17:30Wednesday from 16:00 to 18:00Thursday from 10:00 to 12:00Thursday from 10:30 to 12:30Thursday from 13:30 to 15:30Thursday from 14:00 to 16:00Thursday from 15:30 to 17:30Thursday from 16:00 to 18:00Friday from 10:00 to 12:00Friday from 10:30 to 12:30Friday from 13:30 to 15:30Friday from 14:00 to 16:00Friday from 15:30 to 17:30Friday from 16:00 to 18:00Saturday from 10:00 to 12:00Saturday from 10:30 to 12:30Saturday from 13:30 to 15:30Saturday from 14:00 to 16:00Saturday from 15:30 to 17:30Saturday from 16:00 to 18:00Sunday from 10:00 to 12:00Sunday from 10:30 to 12:30Sunday from 13:30 to 15:30Sunday from 14:00 to 16:00Sunday from 15:30 to 17:30Sunday from 16:00 to 18:00From 01/10/2025 to 31/10/2025Monday from 13:30 to 15:30Monday from 14:00 to 16:00Monday from 15:30 to 17:30Monday from 16:00 to 18:00Tuesday from 13:30 to 15:30Tuesday from 14:00 to 16:00Tuesday from 15:30 to 17:30Tuesday from 16:00 to 18:00Wednesday from 13:30 to 15:30Wednesday from 14:00 to 16:00Wednesday from 15:30 to 17:30Wednesday from 16:00 to 18:00Thursday from 13:30 to 15:30Thursday from 14:00 to 16:00Thursday from 15:30 to 17:30Thursday from 16:00 to 18:00Friday from 13:30 to 15:30Friday from 14:00 to 16:00Friday from 15:30 to 17:30Friday from 16:00 to 18:00Saturday from 13:30 to 15:30Saturday from 14:00 to 16:00Saturday from 15:30 to 17:30Saturday from 16:00 to 18:00Sunday from 13:30 to 15:30Sunday from 14:00 to 16:00Sunday from 15:30 to 17:30Sunday from 16:00 to 18:00From 01/11/2025 to 23/12/2025Saturday from 14:30 to 16:30Sunday from 14:30 to 16:30From 27/12/2025 to 30/12/2025Saturday from 14:30 to 16:30Sunday from 14:30 to 16:30
More information
- Visit with educational sheets/pack
- Guided tour for individuals
- Guided tour for individuals with reservation
- Guided tour for groups
- Guided tour for groups with reservation
- Free parking for cars
- Coach parking
- Free coach parking
- At the edge of the forest
- Isolated
- Adults (individuals)
- Families
- Groups
- Schools
- Less than 500 meters from a bicycle path
- On a cycle route (less than 5 km)
- Group reception
- Shops /Sale of goods
- Walking shoes
- Warm clothes
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From 01/04/2025 to 30/04/2025Monday from 13:30 to 15:30Monday from 14:00 to 16:00Monday from 15:30 to 17:30Monday from 16:00 to 18:00Tuesday from 13:30 to 15:30Tuesday from 14:00 to 16:00Tuesday from 15:30 to 17:30Tuesday from 16:00 to 18:00Wednesday from 13:30 to 15:30Wednesday from 14:00 to 16:00Wednesday from 15:30 to 17:30Wednesday from 16:00 to 18:00Thursday from 13:30 to 15:30Thursday from 14:00 to 16:00Thursday from 15:30 to 17:30Thursday from 16:00 to 18:00Friday from 13:30 to 15:30Friday from 14:00 to 16:00Friday from 15:30 to 17:30Friday from 16:00 to 18:00Saturday from 13:30 to 15:30Saturday from 14:00 to 16:00Saturday from 15:30 to 17:30Saturday from 16:00 to 18:00Sunday from 13:30 to 15:30Sunday from 14:00 to 16:00Sunday from 15:30 to 17:30Sunday from 16:00 to 18:00From 01/05/2025 to 30/09/2025Monday from 10:00 to 12:00Monday from 10:30 to 12:30Monday from 13:30 to 15:30Monday from 14:00 to 16:00Monday from 15:30 to 17:30Monday from 16:00 to 18:00Tuesday from 10:00 to 12:00Tuesday from 10:30 to 12:30Tuesday from 13:30 to 15:30Tuesday from 14:00 to 16:00Tuesday from 15:30 to 17:30Tuesday from 16:00 to 18:00Wednesday from 10:00 to 12:00Wednesday from 10:30 to 12:30Wednesday from 13:30 to 15:30Wednesday from 14:00 to 16:00Wednesday from 15:30 to 17:30Wednesday from 16:00 to 18:00Thursday from 10:00 to 12:00Thursday from 10:30 to 12:30Thursday from 13:30 to 15:30Thursday from 14:00 to 16:00Thursday from 15:30 to 17:30Thursday from 16:00 to 18:00Friday from 10:00 to 12:00Friday from 10:30 to 12:30Friday from 13:30 to 15:30Friday from 14:00 to 16:00Friday from 15:30 to 17:30Friday from 16:00 to 18:00Saturday from 10:00 to 12:00Saturday from 10:30 to 12:30Saturday from 13:30 to 15:30Saturday from 14:00 to 16:00Saturday from 15:30 to 17:30Saturday from 16:00 to 18:00Sunday from 10:00 to 12:00Sunday from 10:30 to 12:30Sunday from 13:30 to 15:30Sunday from 14:00 to 16:00Sunday from 15:30 to 17:30Sunday from 16:00 to 18:00From 01/10/2025 to 31/10/2025Monday from 13:30 to 15:30Monday from 14:00 to 16:00Monday from 15:30 to 17:30Monday from 16:00 to 18:00Tuesday from 13:30 to 15:30Tuesday from 14:00 to 16:00Tuesday from 15:30 to 17:30Tuesday from 16:00 to 18:00Wednesday from 13:30 to 15:30Wednesday from 14:00 to 16:00Wednesday from 15:30 to 17:30Wednesday from 16:00 to 18:00Thursday from 13:30 to 15:30Thursday from 14:00 to 16:00Thursday from 15:30 to 17:30Thursday from 16:00 to 18:00Friday from 13:30 to 15:30Friday from 14:00 to 16:00Friday from 15:30 to 17:30Friday from 16:00 to 18:00Saturday from 13:30 to 15:30Saturday from 14:00 to 16:00Saturday from 15:30 to 17:30Saturday from 16:00 to 18:00Sunday from 13:30 to 15:30Sunday from 14:00 to 16:00Sunday from 15:30 to 17:30Sunday from 16:00 to 18:00From 01/11/2025 to 23/12/2025Saturday from 14:30 to 16:30Sunday from 14:30 to 16:30From 27/12/2025 to 30/12/2025Saturday from 14:30 to 16:30Sunday from 14:30 to 16:30
April and October: daily at 1.30 pm, 2 pm, 3.30 pm and 4 pm.
May to September: daily at 10:00 am, 10:30 am, 1:30 pm, 2:00 pm, 3:30 pm and 4:00 pm.
27 to 30 December: every day at 2.30 pm.
Guided tours in French and German only.
Year-round group bookings only
- By bus
- Through a small sealed road
- On a route that is accessible by bus
Price lists
Groups of 20 or more, by reservation:
Adult groups: €8.00 / person
School groups (6 to 17 years): €4.00 / pupil
Package - group of less than 20 people: €160.00
Family (2 adults + 2 or more children): €24
Family (2 adults + 1 child): €20
- Free for children (age limit) : 6
- Discounts for children : 6 à 17 ans
- Group (minimum number of people) : 20
- Adult rate : 9
- Child rate : 5
- Group rate : 8
- Groups : 4
- Family (2 adults + 2 children) : 24
- Etudiant : 6
Access
Ouvrage du Four à Chaux
Route D65
67510 Lembach