![Workers perform a maintenance in the Mont Terri rock laboratory, a research project of the Swiss Federal Office of Topography (Swisstopo), in St-Ursanne, Western Switzerland, July 3, 2012. The Mont Terri Project Workers perform a maintenance in the Mont Terri rock laboratory, a research project of the Swiss Federal Office of Topography (Swisstopo), in St-Ursanne, Western Switzerland, July 3, 2012. The Mont Terri Project](https://c8.alamy.com/comp/2E5XG79/workers-perform-a-maintenance-in-the-mont-terri-rock-laboratory-a-research-project-of-the-swiss-federal-office-of-topography-swisstopo-in-st-ursanne-western-switzerland-july-3-2012-the-mont-terri-project-is-an-international-research-project-on-the-hydrogeological-geochemical-and-geotechnical-characterisation-of-a-clay-formation-opalinus-clay-clay-formations-are-being-considered-in-various-countries-for-the-deep-geological-disposal-of-radioactive-waste-and-is-the-only-host-rock-being-proposed-in-switzerland-the-rock-laboratory-is-dedicated-solely-to-research-as-such-no-radioactive-2E5XG79.jpg)
Workers perform a maintenance in the Mont Terri rock laboratory, a research project of the Swiss Federal Office of Topography (Swisstopo), in St-Ursanne, Western Switzerland, July 3, 2012. The Mont Terri Project
![Jocelyn Gisiger (R) and Andrea Lisjak, Swiss Federal Office of Topography's (Swisstopo) geologists, perform a 3D geological mapping after an excavation in the Mont Terri rock laboratory, a research project of Swisstopo Jocelyn Gisiger (R) and Andrea Lisjak, Swiss Federal Office of Topography's (Swisstopo) geologists, perform a 3D geological mapping after an excavation in the Mont Terri rock laboratory, a research project of Swisstopo](https://c8.alamy.com/compfr/2cxbajx/jocelyn-gisiger-r-and-andrea-lisjak-swiss-federal-office-of-topographys-swisstopo-geologists-perform-a-3d-geological-mapping-after-an-excavation-in-the-mont-terri-rock-laboratory-a-research-project-of-swisstopo-in-st-ursanne-western-switzerland-july-3-2012-the-mont-terri-project-is-an-international-research-project-on-the-hydrogeological-geochemical-and-geotechnical-characterisation-of-a-clay-formation-opalinus-clay-clay-formations-are-being-considered-in-various-countries-for-the-deep-geological-disposal-of-radioactive-waste-and-is-the-only-host-rock-being-proposed-in-switzerl-2cxbajx.jpg)
Jocelyn Gisiger (R) and Andrea Lisjak, Swiss Federal Office of Topography's (Swisstopo) geologists, perform a 3D geological mapping after an excavation in the Mont Terri rock laboratory, a research project of Swisstopo
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Journalists enter the Mont Terri rock laboratory, a research project of the Swiss Federal Office of Topography (Swisstopo), in St-Ursanne, western Switzerland, September 19, 2013. The Mont Terri Project is an international
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Man on a difficult rock climb called Odyssee on the Eiger North Face Grindelwald, BE, Switzerland CR_PAS
![A worker performs a maintenance in the Mont Terri rock laboratory, a research project of the Swiss Federal Office of Topography (Swisstopo), in St-Ursanne, Western Switzerland, July 3, 2012. The Mont Terri A worker performs a maintenance in the Mont Terri rock laboratory, a research project of the Swiss Federal Office of Topography (Swisstopo), in St-Ursanne, Western Switzerland, July 3, 2012. The Mont Terri](https://c8.alamy.com/comp/2CYXPP4/a-worker-performs-a-maintenance-in-the-mont-terri-rock-laboratory-a-research-project-of-the-swiss-federal-office-of-topography-swisstopo-in-st-ursanne-western-switzerland-july-3-2012-the-mont-terri-project-is-an-international-research-project-on-the-hydrogeological-geochemical-and-geotechnical-characterisation-of-a-clay-formation-opalinus-clay-clay-formations-are-being-considered-in-various-countries-for-the-deep-geological-disposal-of-radioactive-waste-and-is-the-only-host-rock-being-proposed-in-switzerland-the-rock-laboratory-is-dedicated-solely-to-research-as-such-no-radioacti-2CYXPP4.jpg)
A worker performs a maintenance in the Mont Terri rock laboratory, a research project of the Swiss Federal Office of Topography (Swisstopo), in St-Ursanne, Western Switzerland, July 3, 2012. The Mont Terri
![Jocelyn Gisiger, Swiss Federal Office of Topography's (Swisstopo) geologist performs a geological mapping after an excavation in the Mont Terri rock laboratory, a research project of Swisstopo in St-Ursanne, Western Switzerland, July Jocelyn Gisiger, Swiss Federal Office of Topography's (Swisstopo) geologist performs a geological mapping after an excavation in the Mont Terri rock laboratory, a research project of Swisstopo in St-Ursanne, Western Switzerland, July](https://c8.alamy.com/comp/2CY760B/jocelyn-gisiger-swiss-federal-office-of-topographys-swisstopo-geologist-performs-a-geological-mapping-after-an-excavation-in-the-mont-terri-rock-laboratory-a-research-project-of-swisstopo-in-st-ursanne-western-switzerland-july-3-2012-the-mont-terri-project-is-an-international-research-project-on-the-hydrogeological-geochemical-and-geotechnical-characterisation-of-a-clay-formation-opalinus-clay-clay-formations-are-being-considered-in-various-countries-for-the-deep-geological-disposal-of-radioactive-waste-and-is-the-only-host-rock-being-proposed-in-switzerland-the-rock-laboratory-i-2CY760B.jpg)
Jocelyn Gisiger, Swiss Federal Office of Topography's (Swisstopo) geologist performs a geological mapping after an excavation in the Mont Terri rock laboratory, a research project of Swisstopo in St-Ursanne, Western Switzerland, July
![David Jaeggi of Swisstopo (L) gives details to journalists on the deformation experiment in the Mont Terri rock laboratory in St-Ursanne, western Switzerland, September 19, 2013. The Mont Terri Project, run by David Jaeggi of Swisstopo (L) gives details to journalists on the deformation experiment in the Mont Terri rock laboratory in St-Ursanne, western Switzerland, September 19, 2013. The Mont Terri Project, run by](https://c8.alamy.com/compfr/2e6ck32/david-jaeggi-of-swisstopo-l-gives-details-to-journalists-on-the-deformation-experiment-in-the-mont-terri-rock-laboratory-in-st-ursanne-western-switzerland-september-19-2013-the-mont-terri-project-run-by-the-swiss-federal-office-of-topography-swisstopo-is-an-international-research-project-on-the-hydrogeological-geochemical-and-geotechnical-characterisation-of-a-clay-formation-opalinus-clay-clay-formations-are-being-considered-in-various-countries-for-the-deep-geological-disposal-of-radioactive-waste-and-is-the-only-host-rock-being-proposed-in-switzerland-the-rock-laboratory-is-de-2e6ck32.jpg)
David Jaeggi of Swisstopo (L) gives details to journalists on the deformation experiment in the Mont Terri rock laboratory in St-Ursanne, western Switzerland, September 19, 2013. The Mont Terri Project, run by
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