Gubrist Tunnel
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The Gubrist Tunnel is a motorway tunnel in Switzerland, and forms part of the A20 motorway (northern ring around Zurich).
The tunnel is 3.2 km long.
It lies west of the city of Zurich, in a hilly area.
The tunnel is named after the hill of Gubrist, which is nearby.
The Gubrist Tunnel carries a lot of traffic (on the Berne - St. Gall route), but is remarkably uncongested most of the time.