Triangular junction at Olten with the rail lines to Aarau, through the Hauenstein tunnel to Basel, over the old Hauenstein line to Sissach and into Olten station, 2010. In the centre the Wisenberg, Jura mountain range
Triangular junction at Olten with the rail lines to Aarau, through the Hauenstein tunnel to Basel, over the old Hauenstein line to Sissach and into Olten station, 2010. In the centre the Wisenberg, Jura mountain range
The first base tunnel
Long before the Gotthard and Lötschberg, the first base tunnel in Swiss rail history is driven through the hills at Hauenstein near Olten.
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