They are located in the Graian Alps of Piedmont, between the Valle dell'Orco to the north and the Val di Susa to the south.

The Lanzo Valleys (in Italian Valli di Lanzo, in Piedmontese Valade ëd Lans) are a group of valleys in the north-west of Piedmont in the Graian Alps of Piedmont, between the Valle dell'Orco to the north and the Val di Susa to the south.

The Stura di Lanzo, a tributary of the Po, collects the waters flowing through the valleys.

The valleys can be reached by the Po Plain either by railway, with the Ferrovia Torino-Ceres, or by road, following the strada provinciale[2] n.1 named "Direttisima delle Valli di Lanzo".

There are 3 exceptions: The following passes can be reached by footpath: The Lanzo Valleys are surrounded by some of the major peaks of Piedmont, especially along the border line with France.