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Routes
Hiking trails & Routes
Italy
Piedmont
Biella
Cerrione

Great Biellese Traverse Trail

Hard

Great Biellese Traverse Trail

05:14

18.8km

340m

Hiking

Hike the difficult 11.7-mile Glacial trail to Lago di Bertignano (via Trail S25) in Piedmont, exploring glacial landscapes and historical si

Last updated: February 26, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Waypoints

A

Start point

Get Directions

245 m

Chiesa di San Carlo

Place Of Worship

2

5.19 km

The Witches' Tree (Centuries-old Oak)

Highlight • Natural Monument

3

6.51 km

Roman Sepulchral Roc della Regina

Highlight • Historical Site

Large erratic boulder with a large cavity in its center, easily accessible by dirt roads.

Translated by Google •

Tip by

4

10.0 km

Viverone Castle-Ricetto

Highlight • Castle

This shelter was used in the Middle Ages as a warehouse for food supplies to be used in the event of a siege.

Translated by Google •

Tip by

5

10.7 km

Lake Bertignano

Highlight • Lake

Lake Bertignano is quite peaceful and it is possible to walk around it on foot or by bike. Worth a visit 🙂

Translated by Google •

Tip by

B

18.8 km

End point

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Way Types & Surfaces

Way Types

12.1 km

3.55 km

2.33 km

854 m

Surfaces

11.7 km

4.45 km

2.13 km

483 m

< 100 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (410 m)

Lowest point (250 m)

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Weather

Powered by Foreca

Saturday 11 July

32°C

18°C

0 %

Additional weather tips

Max wind speed: 8.0 km/h

to get more detailed weather forecasts along your route

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Frequently Asked Questions

What is the terrain like on the Glacial trail to Lago di Bertignano (via Trail S25)?

This trail is rated as difficult. Given its 'Glacial trail' designation, expect varied terrain that can include stony and rocky sections, as well as steep climbs and descents. Good fitness and sturdy hiking shoes are essential for navigating these conditions.

Is this trail suitable for beginners or families with young children?

Due to its difficult rating and potentially challenging terrain with steep and rocky sections, this trail is generally not recommended for beginners or families with young children. It requires good fitness and sure-footedness.

What are the main points of interest along the route?

The route offers several notable sights. You'll pass by the ancient The Witches' Tree (Centuries-old Oak), the historical Roman Sepulchral Roc della Regina, and the impressive Viverone Castle-Ricetto. The trail also leads to the scenic Lake Bertignano, a beautiful morainic lake.

What is the best time of year to hike this trail?

The best time to hike this trail is typically during the spring, early summer, or autumn months. These seasons offer more moderate temperatures and generally stable weather conditions, which are ideal for a difficult hike. Always check local weather forecasts before you go.

Where can I park to access the trailhead?

Specific parking information for the start of the Glacial trail to Lago di Bertignano (via Trail S25) is not detailed. However, for trails in this region, it's common to find parking areas near major access points or villages. We recommend checking local maps or komoot's starting point for the most accurate parking suggestions.

Are dogs allowed on the Glacial trail to Lago di Bertignano (via Trail S25)?

Generally, dogs are allowed on hiking trails in this region of Italy, but they should be kept on a leash, especially in areas with wildlife or near livestock. Always be prepared to clean up after your pet. Given the trail's difficulty, ensure your dog is fit enough for the strenuous conditions.

Do I need any permits or is there an entrance fee for this trail?

There are typically no specific permits or entrance fees required to hike the Glacial trail to Lago di Bertignano (via Trail S25). However, it's always a good idea to check for any local regulations or protected area rules before your visit.

Does this trail intersect with other well-known paths?

Yes, this route overlaps with several other official trails. Notably, it covers a significant portion of the Grande traversata del Biellese (98%) and also includes sections of the Buon Cammino 1 (27%), Ciclovia Pedemontana Alpina (8%), and Alta Via dell'Anfiteatro Morenico di Ivrea Tappa 2 (7%).

What should I bring for a hike on this difficult trail?

For a difficult trail like this, you should bring sturdy hiking boots with good ankle support, sufficient water, snacks, appropriate layers of clothing for changing weather, sun protection, a first-aid kit, and a fully charged phone with offline maps. Trekking poles can also be very helpful on steep or rocky sections.

Are there any cafes or places to eat near the trail?

While the trail itself is primarily a natural experience, the nearby town of Viverone, close to Lago di Bertignano, offers various amenities including cafes, restaurants, and accommodation options where you can refuel before or after your hike.

Is the Glacial trail to Lago di Bertignano (via Trail S25) a loop trail or an out-and-back?

The Glacial trail to Lago di Bertignano (via Trail S25) is designed as a loop trail. This means you will start and end at the same point, offering a continuous journey through the diverse landscape without retracing your steps.

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