Mont Terri Project

Organisation of the Mont Terri Project

The Mont Terri Project is an international research project for the hydrogeological, geochemical and geotechnical characterisation of a clay formation (Opalinus Clay).

History of the Project

We give here the history of the project from the mid-1990s onwards with a summary of the milestones.


As the representative of the federal government, swisstopo concluded contracts with the project partners and with the Canton of Jura, providing a legal basis for the activities.


The federal government represented by swisstopo funds the operation of the rock laboratory (no third party is involved). The participating partners fund the research programme.