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Hiking Trail recommended route Hiking Trail  · Province of Turin

COLLE DEL LYS Alpine Loop

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  • The parking lot at the Lys Pass with Mount Arpone in the background
    The parking lot at the Lys Pass with Mount Arpone in the background
    Photo: Andrea Mantelli, Turismo Torino e Provincia

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    Loop that climbs the panoramic Arpone from Colle del Lys, then descends the ridge on the border with Val della Torre. Then the long "Sentiero degli Alpini" is followed.

    moderate
    Distance 15.4 km
    5:35 h
    676 m
    676 m
    1,595 m
    961 m

    Arpone is an isolated and very panoramic summit at the intersection of three valleys; it has quite a rocky profile due to the special nature of its rocks, which are part of the Lanzo Ultrabasique Massif, with outcrops of peridotites, rocks formed deep in the Earth's mantle and which emerged almost intact during the formation of the Alps and today appear as large scree slopes that seem to have flowed down from the mountain. 

    The route crosses a large part of the Colle del Lys Natural Park, where the forest is reclaiming its ancient spaces.

    On the Rubiana side, the "Sentiero degli Alpini" is a pleasant path without significant climbs. The return is through Val di Viù from Mompellato and the small hamlet of Suppo.

    It is an itinerary without technical difficulties, panoramic both towards the Lanzo Valleys and towards the Susa Valley.

    Author’s recommendation

    On summer Sundays visit the Resistance ecomuseum and Colle del Lys Natural Park Visitor Center located opposite the parking area.

    Difficulty
    moderate
    Overall difficulty
    moderate

    Derived from the technical difficulty and the stamina requirements.

    Experience
    Landscape
    Highest point
    1,595 m
    Lowest point
    961 m
    Best time of year
    Jan
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    Track types

    Asphalt 9.26%Dirt road 7.23%Forested/wild trail 16.08%Path 67.13%Road 0.27%
    Asphalt
    1.4 km
    Dirt road
    1.1 km
    Forested/wild trail
    2.5 km
    Path
    10.3 km
    Road
    43 m
    Show elevation profile

    Safety information

    Refreshment points and water around the square at the pass. Bakery and fountain in Mompellato. Water also available in Suppo.

    In case of rain, the stony sections can be slippery.

    Tips and suggestions

    For tourist information on the valleys: Lanzo Valleys Tourist Operators Consortium - www.turismovallidilanzo.it.

    Before undertaking any hike it is advisable to consult weather reports or ask for information at local Tourism Offices.

    It is good practice not to hike alone and always inform someone of your destination.

    Do not litter but carry your waste with you, also picking up any left by others.

    The travel times indicated are approximate and may vary depending on weather conditions and individual abilities.

    Roadbook

    Go to the end of the square at the Colle del Lys where some notice boards are located. Then go right onto the long meadow aiming for another park notice board. From that point the path becomes more obvious: follow it until it levels out. To reach the actual summit of Monte Arpone, turn left and in about 5 minutes you will reach the summit. 

    Then return to the previous fork and continue straight ahead on a slight descent. The path then becomes steeper, always staying on the ridge you skip the fork on the right for Colle del Lys and reach the Madonna della Bassa Sanctuary. Pass it and take the forest road that starts shortly beyond and leads to a fork, near which is a monument shaped like an Alpine hat made of stones. Then turn right along the Alpine path which leads to the hamlets of Acquarossa and Bertolo. Continuing on, you reach near Mompellato: here you can choose whether to enter the hamlet or pass just below it avoiding a stretch of provincial road.

    You then come out on the provincial road which you cross to take the small road leading to Suppo where a path starts in the woods that leads to the Frai Pass. From the pass, follow the dirt road to the right until the square in front of the Gaute la Nata restaurant. On the opposite side starts another wide path that arrives back at the Colle del Lys.

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    Photo
    Video
    "Carlo Mastri" Resistance Ecomuseum
    Rifugio Colle del Lys
    CASALPINA DI MOMPELLATO
    COLLE DEL LYS

    Public transport

    In the summer season a GTT bus runs from the Fermi metro station in Collegno and stops directly in the square at the pass. Info on the GTT page

    Directions

    • From the Susa valley. Arrive at Almese (the Avigliana Ovest exit off the Turin-Bardonecchia highway is convenient) and follow provincial road 197 to Colle del Lys;
    • From the Lanzo valleys. Arrive at Viù, pass the town center and in the Fucine hamlet turn left crossing the bridge over the Stura di Viù. Then follow provincial road 197 to Colle del Lys.

    Parking

    In the square at the Colle del Lys

    Coordinates

    DD
    45.178632, 7.383089
    DMS
    45°10'43.1"N 7°22'59.1"E
    UTM
    32T 372959 5004066
    w3w 
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    Get there by train, car, bike, or on foot!

    Author’s map recommendations

    Fraternali publisher, 1:25000 map, 4- Lower Susa Valley, Musinè, Val Sangone, Rivoli Hill

    Book recommendations for this region:

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    Recommended maps for this region:

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    Equipment

    It is recommended to wear footwear with non-slip soles, wind/rain protection, a warm layer, supplies of water and food, first aid kit, hat and sunglasses.

    Localization

    Parts of this content were machine translated from Italian.

    User Questions


    August 01, 2025
    Andrea Mantelli
    il tratto che sale al monte Arpone sarebbe quasi tutto in portage, così come alcuni pezzi della salita al colle della Frais

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    Difficulty
    moderate
    Overall difficulty
    moderate

    Derived from the technical difficulty and the stamina requirements.

    Distance
    15.4 km
    Duration
    5:35 h
    Ascent
    676 m
    Descent
    676 m
    Highest point
    1,595 m
    Lowest point
    961 m
    Round trip Scenic Refreshment stops available Cultural/historical interest Geological highlights Flora

    Weather at the starting point

    10-day forecast

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