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Italy

Aosta Valley

Aosta

Porta Pretoria (Aosta) – Col du Grand Saint-Bernard loop from Aosta

Routes

Bike touring routes & trails

Italy

Aosta Valley

Aosta

Porta Pretoria (Aosta) – Col du Grand Saint-Bernard loop from Aosta

Hard

5.0

(3)

368

riders

Porta Pretoria (Aosta) – Col du Grand Saint-Bernard loop from Aosta

07:11

92.5km

2,460m

Cycling

Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: February 5, 2026

Tips

Temporary access restrictions

Includes segments with temporary access restrictions.

After 31.9 km for 24.1 km

Closed: • October-May (otherwise open)

Waypoints

Start point

Train Station

Get Directions

928 m

Torre dei Balivi

Highlight • Historical Site

The Torre dei Balivi, also known as Tour du bailliage, is one of Aosta's medieval architectural treasures.
The tower, also known as Tour Cornière in French, was mentioned as early as 1192.
In the 12th century it became the property of the local noble family De Palais (or De Palacio), who used it for their own purposes.
Later, in the 13th century, it was transferred to the Count of Savoy and served as the seat of the bailiff (in old French, Bailly).
The tower was expanded and remodeled in the 15th and 16th centuries, with new parts added to meet growing needs.
In the 17th century it was used as a prison and courthouse.
Since 2014, the tower has housed the Istituto Musicale Pareggiato della Valle d'Aosta.

Translated by Google •

Tip by

1.29 km

Porta Pretoria (Aosta)

Highlight • Historical Site

The Porta Praetoria was one of the main gates of the Roman city of Augusta Praetoria Salassorum, as Aosta was called in ancient Rome. It served as the main access to the city from the side of the Roman road that crossed the Aosta Valley. The location of the gate is strategic as it allowed the connection between the Roman Forum and the Roman Theater.

Translated by Google •

Tip by

1.97 km

Arch of Augustus

Highlight • Monument

One of the most characteristic monuments of Aosta that tells of its Roman origins: built in 25 BC by Aulus Terentius Varro Murena, not far from the eastern entrance of the city walls.

Showing Translation

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4.63 km

View of the Stream

Highlight • River

21.7 km

Allein Village Center

Highlight • Settlement

Allein is a small jewel perched on the slopes of Mont Saron. Allein's origins are lost in the mists of time. It is hypothesized that its name derives from the Latin "Allius", or from the presence of the Alans, a Sarmatian tribe that settled here in the 5th century AD. Other scholars, however, trace it back to medieval Germanic contamination. The Roman era has left its mark on the territory: in 1856 several silver coins dating back to the Republican era were found, today kept in the Académie Saint-Anselme museum in Aosta. In the Middle Ages, Allein belonged to the Lordship of Gignod, then passing under the dominion of the Savoy in the 16th century.

Translated by Google •

Tip by

43.8 km

Great St Bernard Hospice

Highlight • Mountain Pass

Beautiful pass road with great views. Passing height 2473 m. Difference in altitude between Martigny and Gr. St. Bernhard ca. 2,000 Hm.

Translated by Google •

Tip by

43.9 km

Col du Grand Saint-Bernard

Highlight • Mountain Pass

This climb is something incredible: it doesn't have difficult gradients but it's long, very long, endless. You reach a point where you almost hate it: you've been cycling for well over an hour and still can't see the summit, you're running out of energy and the wind keeps whipping your face, you'd like to throw your bike away and say "Enough! I'm stopping here"... but it's only for a moment, because you're the one who chose to face it and you knew perfectly well what you were getting into; you set off again with more grit than before and tackle those last few km of road with all your remaining strength.
And then you enter the tunnel, there you start to realize you've made it, you come out, follow the road that turns slightly to the left and, as if in a dream, the lake appears.
You reach the top and think about how many people throughout the centuries have traveled this road: Salassi, Romans, monks, migrants, Napoleonic soldiers... you realize you are in a place where History is dense and nature is stunning, and there you can only love this hill

Showing Translation

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91.6 km

Torre del Lebbroso

Highlight • Historical Site

The Torre del Lebbroso dates back to the 13th century and stands on the western corner of the old Roman city walls of Augusta Praetoria.
The tower was originally built on the foundations of an earlier Roman tower.
The tower was once owned by the noble De Friour family.
Later it was used as part of the Hospice de charité and served as a residence for a leper named Pietro Bernardo Guasco.
The tower is also famous for the book “Le lépreux de la cité d’Aoste” (translated as “The Leper of the City of Aosta”), written by Xavier de Maistre.
Today the Torre del Lebbroso belongs to the Regione Autonoma Valle d’Aosta and is used as an exhibition space.

Translated by Google •

Tip by

92.5 km

End point

Train Station

Way Types & Surfaces

Way Types

62.6 km

14.2 km

11.0 km

4.26 km

528 m

< 100 m

Surfaces

75.1 km

15.4 km

1.10 km

644 m

382 m

Elevation

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

Highest point (2,470 m)

Lowest point (570 m)

Weather

Thursday 7 May

18°C

8°C

38 %

Additional weather tips

Max wind speed: 4.0 km/h

to get more detailed weather forecasts along your route

Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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Porta Pretoria (Aosta) – Col du Grand Saint-Bernard loop from Aosta

Torre dei Balivi

Porta Pretoria (Aosta)

Arch of Augustus

View of the Stream

Allein Village Center

Great St Bernard Hospice

Col du Grand Saint-Bernard

Torre del Lebbroso

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