Highlight • Mountain Pass
Hiking
5.0
(3)
Colle della Gragliasca is a historic mountain pass nestled in the heart of the Biellese Alps, Italy. Standing at an elevation of 2,208 meters, this significant pass forms a natural watershed, connecting the Valle Cervo in Piedmont (leading to Rosazza) with the Valle del Lys, also known as Valle di Gressoney, in the Aosta Valley (leading to Fontainemore). It is renowned for its meticulously constructed 19th-century mule track, a testament to local engineering and craftsmanship.
Hikers are consistently drawn to…
Tips
June 19, 2025
Hiking
In the know? Log-in to add a tip for other adventurers!
Sign up for free
Nearby routes
Best routes near Colle della Gragliasca
5.0
(3)
16
hikers
12.7km
06:00
1,240m
1,240m
Details
Informations
Elevation 2,200 m
The hike to Colle della Gragliasca is generally considered intermediate to challenging. While the lower sections of the historic mule track from Rosazza are well-maintained, the higher parts can be rugged and uneven. Hikers should be prepared for significant elevation gain and some equipped sections with fixed ropes, especially if conditions are icy.
Absolutely! The trail is rich with history. You'll find numerous rock carvings and inscriptions created by stonecutters in the 19th century, depicting local legends and greetings. After passing Case Borrione, look for the San Giovanni Battista Altar-relief and the nearby Chapel of San Giovannino. The path also features various stone seats and shelters carved into the rock, designed as resting points for porters.
The most common starting point is the village of Rosazza. While the intro mentions parking, it's important to note that parking in mountain villages can be limited, especially during peak season. It's advisable to arrive early, particularly on weekends or during summer, to secure a spot. Specific parking areas are usually signposted within Rosazza.
Given the trail's intermediate to challenging difficulty, significant elevation gain, and rugged upper sections, it might not be ideal for very young children or families seeking an easy stroll. However, older, experienced children accustomed to mountain hiking could manage. For dogs, the trail is generally accessible, but owners should ensure their dogs are fit for a strenuous hike and be mindful of any equipped sections or rocky terrain that might be challenging for paws. Always keep dogs on a leash, especially in alpine pastures where livestock or wildlife may be present.
While the classic route from Rosazza is the most popular, experienced hikers can explore options that extend beyond the pass. From Colle della Gragliasca, it's possible to descend into the Valle del Lys towards Fontainemore, creating a longer traverse. For loop options, you might consider combining sections of the E30 with other marked trails in the surrounding Biellese Alps, though these often involve significant planning and potentially multiple days. Consulting a detailed local trail map is recommended for exploring alternative routes.
The diverse mountain landscapes around Colle della Gragliasca are home to various alpine wildlife. Hikers might spot chamois or ibex on higher rocky slopes, especially during quieter times. Birdwatchers could look for birds of prey soaring overhead. The alpine meadows also host smaller mammals and a rich insect life, particularly during the warmer months. Remember to observe wildlife from a distance and avoid disturbing their natural habitat.
The pass itself is a natural, undeveloped area without facilities. The nearest amenities, including cafes, restaurants, and accommodation, can be found in the starting village of Rosazza in the Valle Cervo, or in villages within the Valle del Lys (Gressoney Valley) on the Aosta Valley side, such as Fontainemore. It's essential to carry all necessary supplies, including food and water, for your hike.
Winter hiking to Colle della Gragliasca is indeed possible but requires specialized equipment and experience. The trail will be covered in snow and ice, particularly at higher altitudes and on the equipped sections with fixed ropes. Essential gear includes snowshoes or crampons, ice axes, and appropriate winter clothing. It's crucial to check avalanche conditions and weather forecasts before attempting a winter ascent, and ideally, go with an experienced guide or group.
From the pass itself, hikers are treated to expansive panoramic views. You can clearly see the Gressoney Valley and the Pragnetta valley. Prominent peaks visible include Monte Mars, Gran Gabe, and Punta della Gragliasca. On the Aosta Valley side, you'll also spot the small, picturesque Lago Torretta nestled in the landscape.
The most popular route from Rosazza, following the historic mule track (E30), covers just over 7 kilometers with a significant elevation gain. Depending on your fitness level and the number of stops you make to enjoy the scenery and historical features, the ascent typically takes 3 to 4 hours. Allow similar time for the descent, making it a full-day excursion.