5.0
(1)
28
riders
3
rides
Gravel biking around Lake Place Moulin offers routes through the Aosta Valley's alpine landscapes, characterized by majestic mountains and the turquoise waters of the artificial lake. The region features a mix of terrain, transitioning from paved sections to unpaved gravel roads and mule tracks. The Valpelline valley provides diverse trails through forests and pastures, with significant elevation changes. The area is notable for its glacier-fed waters, alpine panoramas, and the large Place Moulin Dam.
Last updated: June 30, 2026
6
riders
18.5km
01:28
560m
560m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
4
riders
23.2km
01:52
710m
710m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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3
riders
18.9km
02:30
1,020m
1,020m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
15
riders
28.8km
02:15
670m
670m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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High mountain lake with a dam for electricity production. Beautiful is the view of the Matterhorn, not far away
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Il Prarayer is an alpine plateau located at about 2000 meters above sea level, at the end of the Place-Moulin lake. It is reached by a simple path that runs along the lake, almost always flat. The environment is open, with meadows, small streams, and some alpine pasture buildings. The landscape is surrounded by high peaks and glacial environments, clearly visible in the background. The Rifugio Prarayer is located here, used as a base for longer excursions. The area is suitable for a quiet break after the walk along the lake. Itineraries to side valleys and high-altitude routes start from here. Despite the altitude, the setting remains accessible and not very demanding.
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The Place Moulin dam is a majestic arch-gravity dam, designed to make the most of the narrow and incised conformation of the valley. Its concrete structure develops with a slight curvature, which allows the water's thrust to be transferred to the lateral rock walls, reducing direct pressure on the base and ensuring high stability. With a height of approximately 155 meters and a crest length of over 600 meters, it represents one of the most imposing hydraulic works in the Italian Alps. The artificial basin formed upstream reaches a capacity of over 100 million cubic meters of water, mainly fed by the Buthier stream and glacial meltwater. The plant is an integral part of a hydroelectric system: the accumulated water is conveyed through penstocks to power plants located downstream, where the head is transformed into energy. The management of levels is regulated by surface and bottom outlets, designed to control both floods and ordinary releases.
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The Marmitta dei Giganti in Bionaz is a striking cavity carved into the rock that tells of the power of the alpine glaciers. It formed during the last ice age, when meltwaters, laden with sand and stones, channeled into powerful vortices: the debris, rotating ceaselessly, smoothed the rock to create this deep, almost perfectly shaped "pot". Alongside the scientific explanation, the charm of legend also survives: it is said that giants dug these cavities, using them as containers or leaving their superhuman strength imprinted on them. It is precisely this intertwining of nature and imagination that makes the place so fascinating.
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Kommot didn't report it but there are some works around and the only path to avoid asphalting is that one but by bike it's impossible to go up unless you carry it on your shoulder
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It is located inside a beautiful and long path in the woods
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a beautiful artificial lake with tables and picnic areas where it is pleasant to stop and it is possible to take a walk on the path that goes all around the lake
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You can also stay for just a few hours: the hour costs 50 cents (as of 2025).
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The terrain around Lake Place Moulin offers a diverse experience. You'll find a mix of paved sections, particularly on the approach roads, transitioning into unpaved gravel roads and 'mule tracks' as you get closer to the lake and towards destinations like the Prarayer Refuge. The Valpelline valley features nature-filled trails through forests and pastures, often with significant elevation changes, providing both challenging climbs and scenic rides.
Yes, there are several circular routes available. For instance, the Lago Blu – The Old Mule Trail loop from Breuil-Cervinia offers an 18.5 km difficult ride with alpine views. Another option is the Former Cervino Railway – Goillet Lake loop from Breuil-Cervinia, a 19.3 km difficult path that utilizes sections of an old railway line.
You'll encounter breathtaking alpine scenery, including the majestic glaciers of les Petites and les Grandes Murailles. The artificial Lake Place Moulin itself is known for its captivating turquoise waters. The colossal Place Moulin Dam, one of Europe's largest arch dams, is an engineering marvel worth admiring. Further along the trails, you can reach the Prarayer Refuge, a popular stop, and enjoy picturesque waterfalls and streams.
Yes, for stunning views of the Matterhorn, consider the View of the Matterhorn – Former Cervino Railway loop from Valtournenche. This 39.0 km difficult trail leads through varied alpine terrain and is a favorite among local gravel bikers for its scenic vistas.
The region offers spectacular visuals in autumn when larch and birch trees display vibrant shades of yellow, apricot, and orange, contrasting beautifully with the lake's turquoise hue. While specific seasonal recommendations for gravel biking vary, the period between May and September is generally suitable for outdoor activities, with opportunities for guided tours inside the Place Moulin Dam during these months.
While many routes in the region are classified as difficult due to significant elevation changes, the path along Lake Place Moulin itself, stretching to the Prarayer Refuge, is often described as a 'good quality gravel hiking trail/road' that is mostly flat. This section could be more accessible for families looking for a less strenuous ride, though it's important to assess individual fitness levels.
The Prarayer Refuge, located at the far end of Lake Place Moulin, is a popular and welcoming stop for bikers. Additionally, along many routes, you'll find picturesque waterfalls and streams that offer natural spots to refill water bottles. For more substantial options, the villages in the wider Valpelline region, such as Bionaz, may offer cafes and accommodation.
Many of the gravel bike trails around Lake Place Moulin are considered challenging, often featuring significant ascents and descents. For example, the route from Aosta to Lago di Place Moulin involves a 1414-meter vertical ascent. Routes like the Place Moulin Dam – Prarayer Hut loop from Oyace, at 29.4 km, also present a difficult grade, requiring good fitness.
Gravel bikers frequently praise the high alpine scenery, the impressive Place Moulin Dam, and the diverse trails that follow streams and unpaved roads. The region is appreciated for its unique blend of physical challenge and serene natural beauty, with well-maintained unpaved paths and awe-inspiring vistas.
The Valpelline valley actively promotes itself as a destination for cycling and e-bike enthusiasts, and public transport options to reach the general area are available. However, specific public transport access directly to all trailheads around Lake Place Moulin may require local inquiry. It's advisable to check local bus schedules for routes connecting to villages like Bionaz or Oyace, which serve as starting points for some tours.
Yes, for longer rides, consider routes such as The Old Mule Trail – Breuil-Cervinia loop from Valtournenche. This trail spans 36.3 km and involves significant elevation, offering a substantial gravel biking experience through varied alpine landscapes.


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