© 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. 


The tourist sites, museums and visits for Stunning Saint-Nazaire are currently closed due to coronavirus restrictions and will open again as soon as possible.

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:

  • ANNUAL CLOSURE – Reopening: Summer 2021
  • The Dissignac Tumulus is located 3 mi from the submarine base, Route de Dissignac, Saint-Nazaire.
  • This tour is part of the ‘Saison Patrimoine’ programme. See all the events here.

Prices – Dissignac Tumulus

Full Reduced* Children aged 4-17
€6 €5 €3

The more you see, the more you save!

#Pass Patrimoine
Écomusée + the Dissignac Tumulus

Full Reduced* Children aged 4-17
€10 €8 €5


*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