• Attractions
  • Woodland, nature reserve or natural area
  • Grottoes and caves
  • Museum or Interpretation Centre
  • Education to nature

Just 6 km from Mons, the Neolithic flint mines of Spiennes or SILEX'S, listed by UNESCO, are well worth a visit...

Dotted with thousands of mine shafts, the site extends over 100 acres: this is one of the oldest and largest centres for the extraction of flint in Europe.

There is proof of human life in the area from the Palaeolithic period. The flint mines themselves were dug during the Neolithic period, between 4200 and 2500 BC. A few have been fully excavated by archaeologists and can be visited.

SILEX'S

SILEX'S, the interpretive centre at the Neolithic flint mines of Spiennes, presents the many facets of this internationally renowned archaeological site.

Visitors can:

  • enjoy walks and bike rides in the nearby Natur 2000 area
  • visit the museum (complete  with fun activities for the little ones)
  • meet archaeologists and visit the excavation site during special weekends
  • descend into a real Neolithic flint mine, 9 metres underground.

Practical information

  • Only 5,500 persons are allowed down these Neolithic flint mines a year to preserve the site as is.
  • Please contact VisitMons to book your visit.

Visitors with specific needs

The Neolithic Flint Mines are part of the sites certified by the official label Access-i (meaning with facilities or/activities adapted to travellers with specific needs). You will find more details on the website to plan your visit.

COVID-19 : Please keep in mind non essential travels are not supported by Belgian authorities. We do our best to keep our information up to date but it's always best to check with the site you wish to visit before heading there - by phone, email, social media or simply a look at their website - to see their latest opening hours and entry conditions. Some will prefer you to book your ticket in advance. Infos
This information is given for indication purposes only, best to check with the site you hope to visit before heading there - by phone, email, social media or simply by visiting their website.

Visites

Guide available/groups - EN - ES - FR - NL - Guide available/individuals - EN - FR - NL

Discount vouchers

Discount vouchers

Download
Brochures

Brochures

Download