Sedrun: the first Porta Alpina blasting in the east bore, close-up of a decorated drilling jumbo
Sedrun: the first Porta Alpina blasting in the east bore, close-up of a decorated drilling jumbo
No to the Porta Alpina
It is a popular vision: the Porta Alpina to connect Sedrun and the Surselva via a lift to the Gotthard Base Tunnel.
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