Best mountain passes around Fontainemore offer access to high-altitude trekking experiences within the Mont Mars Nature Reserve, located in the Lys Valley of the Aosta Valley. The region is characterized by diverse alpine environments, including forests, pastures, and glacial lakes. Fontainemore serves as a gateway to several significant passes and peaks, providing routes for various hiking levels. The area holds historical significance as part of the ancient mule track for the Oropa procession.
Last updated: May 13, 2026
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Hiking around Fontainemore
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Cycling around Fontainemore
Hill separating the Cervo Valley from the Lys Valley. At the end of June 2025, high presence of mosquitoes.
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Colle della Mologna Grande (about 2,390m) connects Valle Cervo to Valle di Gressoney along the Alta Via n. 1. Reachable from Piedicavallo via a well-preserved historic mule track, it is a panoramic itinerary that passes by the Rivetti Refuge and offers spectacular views as far as Mont Blanc.
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From Oropa you go up, and then, through the tunnel, you can go down from the other side. However, it is done just after the end of winter, apart from the risk that the snow will prevent it from being done, but the roads remain dirty, so, before May, it is a bit risky to tackle it.
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Great hike up to the Colle della Barma - lovely views out over Mont Mars Nature Reserve
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The new road that comes from Camandona does not join here but goes directly to Bocchetto, this downhill road leads to Sagliano
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Length about 6.2 km, average gradient 9%. The most challenging part is immediately after the village of Orbeillaz, it is about 2 km from 12 to 17% gradient! Tackled for the first time by professionals during the Giro d'Italia 2018, on the stage towards Cervinia.
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historical route that connects the Oropa valley with the Cervo valley through the gallery of the same name, was commissioned by the Senator of the Kingdom of Italy Federico Rosazza (1813 - 1899). It dates back to the last decade of the 19th century. Today the main tourist attraction in the Biella area.
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technical highlight inserted to facilitate those unfamiliar with the area in the search for the graft - not immediately perceptible from the main road - of the dirt road classified as S0 with the Panoramica Zegna, to descend into the underlying Cervo valley avoiding the asphalted roads. A little below is the small chapel of the Alpine troops, and below is the Agriturismo Arbo.
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Among the most appreciated mountain passes in the area are Mologna Grande Pass, which offers spectacular views including Mont Blanc, and Colle della Barma, known for its shelter, cross, and views of Lake Camino and the Barma lakes. Visitors also enjoy Colle Carisey, a panoramic hill considered easily accessible from the Valle d'Aosta side.
The mountain passes around Fontainemore are primarily located within the Mont Mars Nature Reserve, the largest nature reserve in the Aosta Valley. You'll encounter diverse alpine environments, including forests, pastures, and wetlands. A highlight is the basin of scenic glacial lakes along the trail to Colle della Barma, such as Lago Vargno, Lè Lounc, and Lé di Barma.
Yes, the Colle della Barma holds historical significance as it is part of the ancient mule track used for the traditional Oropa procession, a religious event that has occurred every five years for over 400 years. The Barma Refuge near the pass also serves as a stop on this historic pilgrimage trail.
The mountain passes are generally best visited during the warmer months, from late spring to early autumn. Autumn is particularly recommended for its vibrant orange and golden hues as the trees change color, offering enchanting views of the glacial lakes and surrounding landscape.
While many trails in the alpine environment can be challenging, some sections or lower-altitude paths might be suitable for families. For instance, the Panoramica Zegna is listed as family-friendly and offers a splendid itinerary, especially during the rhododendron flowering period.
The Mont Mars Nature Reserve, where many of the passes are located, has specific rules regarding dogs to protect its diverse flora and fauna. It's advisable to check the current regulations for dog access within the reserve before planning your hike. Generally, dogs must be kept on a leash.
Access points to trails leading to mountain passes like Colle della Barma often start from hamlets such as Pillaz or Pian Coumarial in Fontainemore. Parking is typically available in these villages or designated areas near trailheads. It's recommended to arrive early, especially during peak season, to secure a spot.
While general hiking in the Aosta Valley doesn't usually require permits, specific activities or access to certain protected areas might have regulations. For the Mont Mars Nature Reserve, it's always best to check with local authorities or the reserve's visitor center for any specific permits or rules that might apply to your planned activity.
For experienced hikers seeking a challenge, beyond the main passes, you can explore routes towards the Mont Mars Summit (2,600 m), the highest point in the reserve. The area also features Col Chardon (2,337 m), Punta della Barma (2,379 m), and Monte Rosso (2,374 m), offering strenuous hiking and mountaineering opportunities with panoramic views.
The Fontainemore area offers a variety of cycling opportunities. You can find challenging road cycling routes, such as the Gressoney-La-Trinité Climb from Pont-Saint-Martin. There are also touring bicycle routes and gravel biking options that explore the scenic landscapes, including routes around Lake Viverone.
Yes, near the Colle della Barma, you'll find the Barma Refuge at 2,060 meters above sea level. This modern hut provides excellent support for hikers, offering amenities like electricity, Wi-Fi, and hot water. In Fontainemore itself, you can find various cafes, restaurants, and accommodation options.
The Mont Mars Nature Reserve is home to diverse alpine wildlife. Keep an eye out for species such as marmots, chamois, and deer. Birdwatchers may also spot eagles and a variety of other birdlife, making it an appealing destination for nature enthusiasts.


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