A13 motorway (Switzerland)

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A13
Location of the A13 in Switzerland
Route information
Length	195 km (121 mi)
Location
Country	Switzerland
Highway system
Transport in Switzerland Motorways

The A13 is a motorway, at times an Autostrasse (expressway), which runs from St. Margrethen in northeastern Switzerland through to Ascona in southern Switzerland, crossing the main chain of the Alps in the Grisons area. It is the southern half of European route E43.