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Geology Portal

Geology Portal

The information platform of the Swiss geology community

Geological cross-section of the NRLA at Gotthard (© swisstopo)
NRLA: geological cross-section (© swisstopo)

Opening of the Gotthard Base Tunnel

The construction of the New Railway Link through the Alps (NRLA) may be considered as the project of the century within the Swiss Alps. Until today, no other stretch of tunnel of such length and beneath such a thick overburden of mountains has been achieved.


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Geological maps, geophysical overview maps, geotechnical maps and further geologically relevant databases in a map view.