Réserve Naturelle de la Grande Sassière, a national nature reserve in the Haute-Tarentaise region of the French Alps, offers a diverse alpine environment for outdoor pursuits. Spanning from 1,798 meters in the gorges of La Daille to 3,747 meters at the Aiguille de la Grande Sassière, its landscape features glaciated cirques, rocky terrain, scree slopes, and the Lac de la Sassière. This varied topography, including quartzites, limestones, and schists, provides a setting for several sports like hiking, road cycling, touring…
101
Routes
4.6
(448)
Average rating
10177
People visited

4.7
(60)
912
hikers
11.9km
06:21
1,360m
1,360m
Hard hike. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

26
hikers
6.84km
02:33
220m
220m
Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.

4.7
(63)
776
hikers
8.04km
02:58
240m
240m
Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.

4.9
(34)
319
hikers
13.6km
05:33
590m
590m
Hard hike. Very good fitness required. Mostly accessible paths. Sure-footedness required.
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4.8
(31)
1,541
riders
54.4km
03:29
1,570m
1,570m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

4.4
(24)
1,712
riders
109km
07:08
3,180m
3,180m
Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride.

5.0
(1)
235
riders
25.8km
01:35
670m
670m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

5.0
(1)
91
riders
12.4km
00:52
410m
410m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
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4.9
(14)
438
riders
79.1km
06:20
2,090m
2,090m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

4.1
(8)
208
riders
52.6km
03:58
1,300m
1,300m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

3.3
(3)
170
riders
32.1km
02:24
780m
780m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

72
riders
16.2km
01:12
370m
370m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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4.7
(9)
111
riders
22.4km
01:59
380m
380m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

5.0
(3)
98
riders
31.5km
03:42
1,250m
1,250m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

4.0
(1)
66
riders
57.3km
07:24
2,640m
2,630m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

4.1
(7)
102
riders
48.2km
03:37
1,130m
1,130m
Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.
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103
runners
17.2km
02:10
460m
460m
Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

36
runners
49.2km
08:27
2,770m
2,770m
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

2.0
(1)
299
runners
10.3km
01:07
150m
150m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

20
runners
17.8km
02:34
590m
590m
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
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4.5
(2)
10
hikers
8.00km
03:27
610m
610m
Moderate mountaineering route. Good fitness required. Mostly accessible paths. Sure-footedness required.

5.0
(2)
9
hikers
10.3km
05:14
720m
720m
Hard mountaineering route. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

5.0
(2)
5
hikers
6.65km
03:35
580m
580m
Hard mountaineering route. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

4.5
(2)
8
hikers
6.31km
03:10
490m
490m
Hard mountaineering route. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
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The Réserve Naturelle de la Grande Sassière is a national nature reserve located in the Haute-Tarentaise region of the French Alps. It spans from 5,899 feet (1,798 meters) to 12,293 feet (3,747 meters) at the Aiguille de la Grande Sassière. The reserve is characterized by glaciated cirques, diverse geology, and significant biodiversity.
Réserve Naturelle de la Grande Sassière offers a range of outdoor activities including hiking, road cycling, touring cycling, mountain biking, jogging, and mountaineering. The reserve features routes for various skill levels across these sports. More information can be found in guides like Hiking around Réserve Naturelle de la Grande Sassière.
Yes, the reserve offers easy, signposted routes suitable for families and those seeking a tranquil experience. An example is the approximately 4.3-mile (7 km) loop around Lac de la Sassière, which has an elevation gain of about 656 feet (200 meters). For more options, consult the Easy hikes around Réserve Naturelle de la Grande Sassière guide.
Challenging options include the Aiguille de la Grande Sassière Trail, which is a difficult 7.4-mile (11.9 km) hike with 4,462 feet (1,360 meters) of elevation gain. The summit of Aiguille de la Grande Sassière, at 12,293 feet (3,747 meters), is noted as one of the highest hikes in France accessible without specialized mountaineering equipment late in the summer season. Explore more with the Mountain Hikes around Réserve Naturelle de la Grande Sassière guide.
Cycling is generally prohibited within the reserve to protect its natural heritage, with one exception. Cycling is permitted on the carriage road that leads from the parking lot to Lac de la Sassière. The wider region surrounding the reserve offers numerous opportunities for road and touring cyclists.
Mountain biking is permitted on the carriage road to Lac de la Sassière. The Aiguille de la Grande Sassière is considered one of the highest 'ridable' peaks in the Alps for experienced mountain bikers, though it is extremely challenging and often requires carrying the bike. Further details are in the MTB Trails around Réserve Naturelle de la Grande Sassière guide.
The reserve features expansive glaciated cirques, rocky environments, scree slopes, cliffs, and glaciers. Notable natural features include the picturesque Lac de la Sassière and the summit of Aiguille de la Grande Sassière. The area also encompasses natural meadows, pastures, and unique wetland environments.
The reserve is a vital habitat for alpine fauna, including significant populations of Alpine ibex (bouquetin des Alpes), chamois, and marmots. It is also a privileged feeding ground for golden eagles and bearded vultures. Marmot populations have been the subject of scientific studies in the area since the 1990s.
Yes, the reserve offers easy, signposted routes, such as the loop around Lac de la Sassière, which are ideal for families. These paths allow for observation of chamois, ibex, and marmots. Parts of the trails are also accessible for people with reduced mobility during summer. Consult the Family-friendly hikes around Réserve Naturelle de la Grande Sassière guide.
Réserve Naturelle de la Grande Sassière is a popular destination on komoot, with more than 109,000 visitors having shared their experiences. The routes available have an average rating of 4.68 out of 5 stars. This indicates a high level of satisfaction among users.
Information about the reserve can be found on the Réserves Naturelles de France website. More detailed information and contact options are also available through the Parc national de la Vanoise website, which manages the reserve. The general contact number for the Parc national de la Vanoise is 04 79 62 30 54.
The provided information does not specify the exact dog policy for Réserve Naturelle de la Grande Sassière. Visitors should check the official website of the Parc national de la Vanoise or contact them directly for current regulations regarding dogs in the reserve.

