It is the southern entry point to the San Bernardino tunnel, that complemented the road over the San Bernardino Pass in 1967, opening a new all-year-round road to crossing the alps.
But contrary to triumphant proclamations in the Sonderbund newspapers, the action failed to effectively separate the federal troops under Luvini in the Ticino from those in the Grisons under Eduard de Salis-Soglio (the brother of the insurgent commander), because the San Bernardino Pass remained open to the Confederates.
San Bernardino Pass in the Swiss Alps connecting Thusis and Bellinzona
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