Réservoir De Grand-Maison is a region situated in the French Alps, within the Isère department, nestled between the Belledonne and Grandes Rousses massifs. This area is characterized by its mountainous terrain and significant natural features, including the high-altitude Lac de Grand Maison and the lower Lac du Verney. The diverse topography and alpine setting provide a varied landscape for several sports like road cycling, touring cycling, hiking, jogging, and more.
The Réservoir De…
127
Routes
4.5
(387)
Average rating
10198
People visited

4.8
(33)
3,050
riders
60.9km
03:56
1,810m
1,810m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

5.0
(5)
169
riders
52.0km
03:25
1,600m
1,600m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

5.0
(1)
189
riders
59.7km
03:59
1,900m
1,900m
Hard road ride. Very good fitness required. You may need to push your bike for some segments of this route.

5.0
(7)
116
riders
12.4km
00:54
480m
480m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
Get access to more routes and recommendations from other explorers.
Already have an account?

4.7
(10)
88
hikers
13.5km
05:59
1,150m
1,150m
Hard hike. Very good fitness required. Mostly accessible paths. Sure-footedness required.

4.6
(25)
312
hikers
8.03km
03:42
470m
470m
Hard hike. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

4.6
(35)
273
hikers
5.54km
02:24
350m
360m
Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.

4.5
(25)
220
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
Get access to more routes and recommendations from other explorers.
Already have an account?

3.5
(2)
339
riders
35.9km
02:53
1,080m
1,070m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

5.0
(1)
294
riders
59.3km
04:53
1,890m
1,890m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

5.0
(5)
687
riders
108km
08:44
3,270m
3,270m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

4.2
(9)
212
riders
65.4km
05:01
1,790m
1,790m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
Get access to more routes and recommendations from other explorers.
Already have an account?

4.0
(1)
386
runners
36.8km
05:17
1,730m
1,730m
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

28
runners
11.6km
01:48
580m
580m
Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

31
runners
11.6km
01:38
580m
580m
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

4.0
(1)
23
runners
6.57km
00:54
290m
290m
Hard run. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
Get access to more routes and recommendations from other explorers.
Already have an account?

4.3
(4)
31
riders
23.9km
03:04
1,200m
1,200m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

5.0
(1)
35
riders
19.5km
02:21
990m
1,000m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.

5.0
(1)
51
riders
60.8km
05:38
2,100m
2,100m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.

4.0
(3)
20
riders
13.1km
01:12
250m
260m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
Get access to more routes and recommendations from other explorers.
Already have an account?

17
hikers
11.0km
06:48
1,220m
1,220m
Hard mountaineering route. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

13
hikers
19.5km
11:27
1,790m
1,790m
Hard mountaineering route. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

4.7
(3)
15
hikers
12.0km
06:18
1,070m
1,070m
Hard mountaineering route. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

5.0
(1)
5
hikers
8.57km
03:33
710m
710m
Moderate mountaineering route. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
Get access to more routes and recommendations from other explorers.
Already have an account?
Réservoir De Grand-Maison offers a variety of outdoor activities, including Road cycling, Touring cycling, Hiking, Jogging, Mountain biking, and Mountaineering. The region features 5 routes in total, with an average rating of 4.49 stars from over 42,000 visitors.
The region is characterized by its alpine setting in the French Alps, featuring Lac de Grand Maison at 5,561 feet (1,695 meters) altitude and the impressive Grand'Maison Dam. Lac du Verney, a lower reservoir at 2,526 feet (770 meters), is also a notable feature. The area is situated within the Romanche Valley.
Yes, komoot offers a dedicated guide for road cycling. Cyclists can explore routes with significant elevation gains and views of the Grand-Maison Dam. Find more information in the Road Cycling Routes around Réservoir De Grand-Maison guide.
The Réservoir De Grand-Maison region provides opportunities for hiking amidst alpine scenery. Hikers can find various trails suitable for different skill levels. Consult the Hiking around Réservoir De Grand-Maison guide for specific options.
Touring cyclists can find varied terrain and scenic routes in Réservoir De Grand-Maison. The region's roads, often designed for dam access, can offer good conditions for cycling. More details are available in the Cycling around Réservoir De Grand-Maison guide.
The Grand'Maison Dam is a significant engineering structure, 525 feet (160 meters) tall and 1,804 feet (550 meters) long, forming Lac de Grand Maison. It is part of France's largest hydroelectric facility, which also serves as Europe's largest pumped-storage hydroelectric plant. The Hydrélec museum provides information on this facility.
Yes, the region offers easy hiking options for those seeking less strenuous trails. These routes allow for enjoyment of the alpine environment without significant difficulty. Specific easy hikes can be found in the Easy hikes around Réservoir De Grand-Maison guide.
Réservoir De Grand-Maison is a popular destination, with more than 42,000 visitors having shared their experiences on komoot. The routes in the region have an average rating of 4.49 out of 5 stars, indicating high satisfaction among users.
Yes, Réservoir De Grand-Maison includes opportunities for mountain biking. The mountainous terrain provides varied conditions for MTB enthusiasts. Consult the MTB Trails around Réservoir De Grand-Maison guide for available routes.
The region offers various trails suitable for jogging and running amidst its alpine landscapes. Enthusiasts can explore paths that cater to different preferences. Details on specific routes are available in the Running Trails around Réservoir De Grand-Maison guide.
For official information regarding the hydroelectric facilities and the broader Isère-Drôme region, the website is edf.fr/isere-drome. This site provides context on the dam's operations and regional energy.

