4.8
(4)
161
hikers
7
hikes
Mountaineering around Sumvitg, located in the Surselva region of Graubünden, Switzerland, offers a diverse and challenging alpine environment. The area is characterized by the wild, V-shaped Val Sumvitg, which features thundering waterfalls and leads towards the Greina High Plateau. This region includes the Rein da Sumvitg river, carving through narrow gorges, and the Runcahez reservoir, serving as a starting point for many routes. The terrain presents a mix of steep slopes, exposed areas, and high alpine sections, making it suitable…
Last updated: May 9, 2026
4.8
(4)
95
hikers
11.6km
08:42
1,240m
1,240m
Hard mountaineering route. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
15
hikers
10.8km
04:29
890m
890m
Moderate mountaineering route. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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6
hikers
14.9km
06:48
930m
930m
Hard mountaineering route. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
5
hikers
16.7km
08:46
1,130m
1,130m
Hard mountaineering route. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
5
hikers
3.46km
01:50
300m
300m
Moderate mountaineering route. Good fitness required. Mostly accessible paths. Sure-footedness required.
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very nice tour, worth a visit.
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Anticipation Anticipation Anticipation and a lot of nonsense in mind
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Very nice tour, worth a visit.
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The Klausen Pass is a 1,948 m above sea level mountain pass in the Swiss canton of Uri, connecting the canton's core area to Glarus via the Urner Boden valley, which is continuously inhabited in winter and therefore a functional exclave. The pass leads from Altdorf (canton of Uri) through the Schächen Valley, over the pass summit and the parish of Urnerboden to Linthal in the canton of Glarus. The pass summit forms the border between the Uri municipality of Unterschächen and the Urner Boden region, which belongs to Spiringen.
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A cozy mountain hut with very friendly staff. From the dining tables, you have a view of the large reservoir and the surrounding mountains. Overnight stays are available in small dormitories.
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The hut has been recently renovated and is now even more comfortable. It's beautifully situated, surrounded by mountains and on the edge of the Greina Plain. You reach the hut via a new suspension bridge. Too exciting? You can also walk along the other side of the mountain.
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Mountaineering around Sumvitg offers a diverse and challenging alpine environment. You'll encounter wild, V-shaped valleys like the Val Sumvitg, which features thundering waterfalls and leads towards the untouched Greina High Plateau. The terrain includes steep slopes, exposed areas, and high alpine sections, with some routes providing access to glacier terrain. Expect a mix of frequently visited and rarely traveled alpine paths.
Yes, for experienced mountaineers, there are routes that provide access to glacier terrain and involve technical climbing. For example, the Clariden – Iswändli Glacier Entry Point loop from Klausenpass offers access to glacier terrain. Another challenging option is the Climbing Route on Rocky Cliff – Carassina Dam loop from Diga del Luzzone, which features a climbing section on a rocky cliff.
The durations for mountaineering routes in Sumvitg vary significantly based on difficulty and distance. Moderate routes, such as the Medelserhütte loop from Ortsbild Curaglia (Medel), can take around 4 hours 30 minutes. More difficult routes, like the Greina Plateau – Val Frisal Suspension Bridge loop from Puzzatsch, typically require about 6 hours 50 minutes, while the most challenging ascents can extend to over 9 hours.
Yes, several mountaineering routes around Sumvitg are designed as loops, allowing you to start and finish at the same point. Examples include the Val Frisal Suspension Bridge loop from Puzzatsch and the Medelserhütte loop from Ortsbild Curaglia (Medel). These circular routes offer varied scenery without retracing your steps.
The region is rich in natural beauty. You can expect to see thundering waterfalls, such as the Stäubifall Waterfall, and the dramatic gorges carved by rivers like the Rein da Sumvitg. The untouched Greina High Plateau is a key attraction, known for its tundra-like moorland. You might also encounter alpine flora, especially in areas like the flower meadows of Dötra and Anvéuda in mid-June. The Lago di Luzzone and Luzzone Dam are also notable features.
The best time for mountaineering in Sumvitg generally spans from late spring to early autumn. Mid-June is particularly good for witnessing alpine flora. Wild streams on the Greina high plateau are most impressive after the snowmelt in early July. For routes involving high alpine sections or glaciers, careful planning and awareness of seasonal conditions, including avalanche risk, are crucial.
The mountaineering routes in Sumvitg are highly regarded by the komoot community, with an average rating of 4.8 stars from over 11 reviews. More than 200 mountaineers have used komoot to explore the varied terrain, often praising the challenging ascents, diverse landscapes, and the untouched natural beauty of areas like the Greina high plateau.
Yes, the region offers several impressive viewpoints and passes. The Klausen Pass Summit is a significant point, offering access to glacier terrain. For panoramic views, consider hiking to the church of St. Remigius. The Greina Pass is also a key access point to the Greina high plateau and the Terrihütte.
While specific public transport details for every trailhead are not provided, Sumvitg is part of the Surselva region, which generally has public transport connections. The Runcahez reservoir is mentioned as a convenient starting point for many hikes, suggesting accessibility. For routes starting from places like Klausenpass or Puzzatsch, it's advisable to check local bus schedules for connections to these mountain passes and villages.
Many mountaineering routes in Sumvitg, especially those starting from popular access points like the Runcahez reservoir or villages such as Puzzatsch and Curaglia, typically offer parking facilities. It's recommended to check specific route descriptions or local tourist information for detailed parking availability and any associated fees at your chosen trailhead.
While many routes are challenging, there are options that cater to varying skill levels. The region offers extensive hiking trails, and some paths around the Sumvitg Valley or towards the Greina high plateau can be adapted for those seeking a moderate challenge, provided they have good fitness and sure-footedness. The Medelserhütte loop from Ortsbild Curaglia (Medel) is classified as moderate, making it a good option for those looking for a less extreme mountaineering experience.


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