Mont Terri Rock Laboratory

Guided tours of the Mont Terri Rock Laboratory now possible again

Together with swisstopo, we are pleased to be able to offer guided tours at Mont Terri for up to 21 visitors again. If you would like to sign up a larger group, we will try to prepare an individual programme with you.

Your protection and that of the rock laboratory staff are very important to us. We comply with official hygiene measures and are responsible for their implementation.

Hand hygiene stations have been set up at the most important locations. We provide masks free of charge and will hand these out to you on site. We kindly ask you to wear the protective masks during transport in the minibuses to and from the rock laboratory.

In accordance with official instructions, we will keep your contact details on the registration list for 14 days, after which they will be completely destroyed. The cantonal medical service may request the contact details if it considers it necessary.

We thank you for your understanding and look forward to your visit.

Guided tours of the Mont Terri Rock Laboratory

The visitors' centre of the Mont Terri Rock Laboratory offers guided tours for groups of at least ten people upon prior registration. A guided tour lasts around two hours and is conducted in the mornings or afternoons, preferably on a weekday. Guided tours are available year-round. The Mont Terri Rock Laboratory can best be reached by train. The visitors' centre is located only 200 metres away from the St-Ursanne train station.

A tour includes:

  • Introduction in the pavilion of the visitors' centre (45 minutes)
  • Minivan transfer to the underground rock laboratory (15 minutes)
  • Guided tour of the rock laboratory, including the return journey to the train station (90 minutes)

Registration for a guided tour

Please contact Renate Spitznagel (see box on right for contact details) to register for a guided tour of the Mont Terri Rock Laboratory. We look forward to your visit.

Research contributing to repository safety

The international research project at Mont Terri in Canton Jura is conducted under the lead of the Swiss Federal Office of Topography, swisstopo. Nagra has been involved since its inception in 1996. Experiments are conducted on the hydrogeological, geochemical and rock mechanical properties of the Opalinus Clay host rock and on the behaviour of the engineered barriers. The results provide input for evaluating the feasibility and safety of deep geological disposal of radioactive waste in argillaceous rock, in particular the Opalinus Clay.

We look forward to welcoming you to the Mont Terri Rock Laboratory.


View of the entrance to the Mont Terri Rock Laboratory (source: © Comet Photoshopping, Dieter Enz)

Visit to the underground Mont Terri Rock Laboratory (source: Nagra)

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