4.6
(26)
496
hikers
20
hikes
Mountaineering routes around Stausee Mattmark are set within a dramatic alpine landscape, characterized by high-altitude terrain and glacial features. The region features the turquoise-blue Mattmarksee, an artificial lake at over 2,000 meters above sea level, surrounded by a mountain backdrop that includes the Allalinhorn and other four-thousanders. Glaciers such as the Allalin and Schwarzberg are prominent, contributing to a challenging high-alpine environment. The area offers diverse natural features, from waterfalls to imposing glacial peaks, suitable for experienced mountaineers.
Last updated: May 24, 2026
5.0
(2)
46
hikers
13.2km
06:24
810m
810m
Hard mountaineering route. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
5.0
(2)
10
hikers
Moderate mountaineering route. Good fitness required. Mostly accessible paths. Sure-footedness required.

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5
hikers
Hard mountaineering route. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
4.0
(3)
116
hikers
4.84km
02:07
260m
260m
Hard mountaineering route. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
6
hikers
Hard mountaineering route. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
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Popular around Stausee Mattmark
Wonderful tour up here. I was there in 2001 on a mountain training course of the Swiss army.
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Beautiful viewpoint. Located on the Mattmark - Britanniahütte hiking trail.
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A beautiful vantage point of the Mattmark Reservoir. This reservoir is located at the southern end of the Saas Valley at an altitude of 2,197 meters, nestled in the impressive mountains near Saas-Almagell. With a length of approximately three kilometers and a maximum width of 800 meters, it is one of the larger reservoirs in the region. It is fed by various mountain streams, such as the Saaser Vispa, the Schwarzbergbach, and the Ofentalbach. Behind the imposing 120-meter-high earthfill dam, the Vispa continues downstream toward the Rhone Valley.
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Surrounded by high alpine tranquility and glacial peaks, the turquoise-blue Mattmarksee lies at your feet. This artificial lake is located at over 2,000 meters in the farthest reaches of the Saas Valley. It stores meltwater and supplies the region with renewable energy.
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The Mattmark Reservoir is a reservoir located in the municipality of Saas-Almagell at the southern end of the Saas Valley in the Visp district of the canton of Valais in Switzerland. The lake is used by Kraftwerke Mattmark AG to generate electricity. In 1965, a glacier collapse during construction claimed 88 lives. Wikipedia
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To the south of the Saas Valley is the largest earth dam in Europe, the Mattmark Dam. The reservoir, which is used to generate electricity, is a real place of power and is fascinating not only for its technical details, but also for its wild, romantic location. Source: https://www.saas-fee.ch/de/erlebniswelten/mattmark-staudamm-sommer
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A great place of power with such different impressions in every season.
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While the Stausee Mattmark region is renowned for its challenging high-alpine terrain, there are a few moderate mountaineering routes available. These routes still require good fitness and sure-footedness, but they offer a less strenuous introduction to the area's dramatic landscapes. For example, the Mattmark Dam – View of the Valais Alps loop from Staudamm Mattmark is a moderate option that provides stunning vistas without the extreme demands of glacial traverses.
For experienced mountaineers seeking significant challenges, Stausee Mattmark offers several demanding routes. The Britannia Hut – Hohlaub Glacier loop from Staudamm Mattmark is a difficult path that traverses glacial terrain, requiring alpine experience and proper gear. Another challenging option is the Jatzilücke – Mattmark Dam loop from Staudamm Mattmark, which leads through high mountain passes and along the reservoir, offering a strenuous but rewarding experience.
Yes, several mountaineering routes around Stausee Mattmark are designed as loops, allowing you to start and end at the same point. A popular choice is the Mattmark Dam loop from Staudamm Mattmark, which circles the large artificial lake and provides continuous views of the surrounding peaks. Other challenging loops include the Britannia Hut and Jatzilücke routes, which offer extensive high-alpine circuits.
Mountaineering routes around Stausee Mattmark are rich with dramatic natural features. You'll encounter the mighty glaciers of the Allalin and Schwarzberg, which adorn the Allalinhorn and other four-thousanders. The turquoise-blue Mattmarksee itself is a central feature. Keep an eye out for charming waterfalls, including one cascading over hexagonal basalt columns (Waterfall Over Hexagonal Basalt Columns), and enjoy panoramic views from various points like the View of Mattmarksee. The Monte Moro Pass, with its golden Madonna statue, is another significant landmark on longer routes.
The high-alpine environment around Stausee Mattmark, situated at over 2,000 meters above sea level, ensures a refreshing summer climate. Therefore, the best time for mountaineering is typically during the summer months, from late June to early September, when snowmelt has largely receded from lower passes and glacial routes are more accessible. Always check current weather and trail conditions before heading out.
While many mountaineering routes are strenuous, the Stausee Mattmark area does offer easier options for families. An easy, wheelchair-accessible path circles the reservoir, perfect for leisurely strolls. This allows families to enjoy the stunning alpine scenery and the impressive Mattmark Dam without undertaking challenging mountaineering. You can also visit the visitor center at the dam for insights into its history and renewable energies.
Generally, dogs are permitted on hiking and mountaineering trails in the Stausee Mattmark region. However, given the high-alpine environment, glacial sections, and potential for encountering wildlife like marmots and ibex, it's crucial to keep dogs on a leash, especially in sensitive areas. Always ensure your dog is fit enough for the chosen route and that you carry enough water for both of you.
The mountaineering routes in Stausee Mattmark are highly rated by the komoot community, with an average score of 4.6 stars. Reviewers often praise the dramatic mountain backdrop, the stunning views of the turquoise Mattmarksee, and the challenging yet rewarding high-alpine experience. The blend of serene waters and imposing glacial peaks creates a powerful natural experience that many find captivating.
Beyond the natural beauty, several points of interest enhance the mountaineering experience. The Mattmark Dam itself is a marvel of engineering. The Mattmark Reservoir is a highlight, and you might even discover the unique Icicle Tunnel at the Mattmark Reservoir. The Distelalp, located at the far end of the reservoir, is another point of interest, and the Monte Moro Pass offers historical significance as an old smuggler's route with views of the Monte Rosa east face.
There are over 20 mountaineering routes documented around Stausee Mattmark, offering a diverse range of challenges for different skill levels. The majority of these, about 15, are classified as difficult, while approximately 6 are considered moderate, providing ample choice for exploring this stunning alpine region.
The duration of mountaineering routes around Stausee Mattmark varies significantly based on difficulty and distance. Moderate routes, such as the View of the Valais Alps – Mattmark Dam loop from Staudamm Mattmark, can take around 2-3 hours. More challenging and longer routes, like the Mattmark Dam loop from Staudamm Mattmark, typically require 6 hours or more to complete, demanding good stamina and preparation.
Yes, public transport is available to reach Stausee Mattmark. You can typically take a bus from Saas-Almagell directly to the Mattmark Dam, which serves as a common starting point for many mountaineering routes. This allows for convenient access without the need for a private vehicle, especially for those planning longer point-to-point tours.


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