European route E57
European route E 57 is an intermediate E-road connecting Sattledt - Liezen - St. Michael - Graz in Austria and further Maribor - Ljubljana
in Slovenia.
In Austria, it follows the A9 motorway, also called Pyhrnautobahn. In Slovenia it follows the A1 motorway.
It includes the second-longest tunnel in Austria, the Plabutschtunnel, long. It also includes the Gleinalm tunnel, long, and the Bosruck tunnel, long.
Itinerary
The E 57 routes through two European countries:Austria
Sattledt - Liezen - St. Michael - Graz - Straß in Steiermark –  |
Slovenia
 – Šentilj v Slovenskih Goricah - Maribor - Celje - Ljubljana |