Taubenloch

It crosses the first Jura Mountain chain, as considered from the Swiss Plateau.

The gorge is one of the rare natural crossings from the Swiss Plateau to the Jura mountains between Schaffhausen and Geneva.

It continued through Morat, Chiètres and Kallnach to Solodorum (Solothurn) and Vindonissa (Windisch), along the eastern part of the Seeland (lake land).

A spur road from Petinesca went through the steep gorge of Taubenloch, crossed the Jura through the Col de Pierre Pertuis pass, and lead to Augusta Raurica and what is now modern Germany along the Rhine.

The "Transjurane" motorway project is expected to be finalised between 2025 and 2030, by following the route of the gorge and linking up what is now the E27.