©SNAT 2019|Alexandre Lamoureux

Dissignac Tumulus A 6,000-year old burial chamber

Discover a timeless and unique monument which was built more than 6,000 years ago… Get close to the Neolithic society, its talents and mysteries.

Welcome to the Dissignac Tumulus

A 6,000-year old burial chamber

The Neolithic Era witnessed the appearance of the first large barrows, also known as burial mounds or tumuli. The Dissignac Tumulus was built approximately 6,000 years ago and is considered one of the most remarkable prehistoric monuments in the whole region. It contains two burial chambers, both composed of one chamber connected to the entrance by a long and narrow corridor. An engraved stone slab with mysterious symbols is hidden within one of the burial chambers (axes, a crosier, a sperm whale…). During the summer season, join a small group guided tour to discover the talents and mysteries of the Neolithic society.

The Dissignac Tumulus is classified as a French historic landmark. 

Practical Information

Visitor Info:

  • Open every day in July and August except Saturday and Monday.
  • Guided tour in French. Booking essential.
  • Approx. 45 min.
  • The Dissignac Tumulus is located at 7 km from the submarine base, Route de Dissignac, Saint-Nazaire.

Prices – Dissignac Tumulus

FullReducedChildren aged 4-17

The more you see, the more you save!

#PASS Patrimoine
Écomusée + the Dissignac Tumulus

FullReducedChildren aged 4-17
  • Reduced price (on presentation of proof): students, job seekers, people with disabilities with one accompanying person
  • Free admission for children under the age of 4 and annual PASS holders
  • Where can I buy tickets?
    • On this website
    • On site, 3 ticket offices: submarine base, fortified lock and Écomusée
  • Means of payment: cash, credit card (VISA and Mastercard)

How to get here?

The Dissignac Tumulus is located 3 mi from the city centre, Route de Dissignac, Saint-Nazaire.

There are several car parks close by.


  • Mobility impairment: the Tumulus is not wheelchair accessible
  • Deaf and hearing impaired visitors: no specific arrangement
  • Blind and visually impaired visitors: guided tour
  • Mentally impaired visitors: the Tumulus contains confined and dark areas

For further clarification or information, please call +33 (0)2 28 540 640