Alpine pass and tunnel, southern Switzerland.
It is situated between the Pennine and Lepontine Alps at 6,581 ft (2,006 m). An important Alpine route since the mid-13th century, the pass became a major link between central and southern Europe when Napoleon had a road built there (1800–07). A hospice, occupied by the Augustinian s and dating from 1235, is near the summit. When the pass is closed to road traffic in the winter, cars are transported by train through a 12.5-mi (20-km) tunnel below the pass that connects Brig, Switz., with Iselle, Italy.