Monte Mars, at 2,600 m, is the highest peak of the Biellese Prealps

Biellese Prealps

The Biellese Prealps, or prealpi biellesi form an area of the Italian prealps situated to the south of the Pennine Alps. Sometimes they are regarded as a distinct Alpine group, at others as a subgroup of the Pennine Alps....

, northern Italy

Italy

Italy , officially the Italian Republic languages]] under the European Charter for Regional or Minority Languages. In each of these, Italy's official name is as follows:;;;;;;;;), is a unitary parliamentary republic in South-Central Europe. To the north it borders France, Switzerland, Austria and...

.

It is located on the water divide between the Valle del Lys (Aosta Valley) and the Elvo Valley

Elvo

The Elvo is a 53 km torrent in the Piedmont region of north-west Italy and is the principal tributary of the Cervo...

 (Province of Biella

Province of Biella

The Province of Biella is a province of Italy located in Piedmont. It was created in 1992 and its capital is the city of Biella.It has an area of 913 km², and a total population of 187,249...

). The summit provides a panorama across the plains of the Po Valley

Po Valley

The Po Valley, Po Plain, Plain of the Po, or Padan Plain is a major geographical feature of Italy. It extends approximately in an east-west direction, with an area of 46,000 km² including its Venetic extension not actually related to the Po River basin; it runs from the Western Alps to the...

 and of the Monte Rosa

Monte Rosa

The Monte Rosa Massif is a mountain massif located in the eastern part of the Pennine Alps. It is located between Switzerland and Italy...

 massif. It can be ascended from the south, starting from the Santuario di Oropa (near the Sacro monte di Oropa

Sacro Monte di Oropa

The Sacro Monte di Oropa is a Roman Catholic devotional complex in the comune of Biella, Piedmont, northern Italy...

), or from the north, starting from the Valle del Lys.