![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/2D09086/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-2D09086.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
![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
![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, 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
![Man on a difficult rock climb called Odyssee on the Eiger North Face Grindelwald, BE, Switzerland CR_PAS Man on a difficult rock climb called Odyssee on the Eiger North Face Grindelwald, BE, Switzerland CR_PAS](https://www.imago-images.com/bild/st/0114897068/w.jpg)
Man on a difficult rock climb called Odyssee on the Eiger North Face Grindelwald, BE, Switzerland CR_PAS
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