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Switzerland
Valais
Brig
Eggerberg

Niwärch–Gorperi Suonen Trail – Suonen Trail in Valais loop from Eggerberg

Routes
Hiking trails & Routes
Switzerland
Valais
Brig
Eggerberg

Niwärch–Gorperi Suonen Trail – Suonen Trail in Valais loop from Eggerberg

Hard

5.0

(2)

49

hikers

Niwärch–Gorperi Suonen Trail – Suonen Trail in Valais loop from Eggerberg

07:41

16.4km

1,240m

Hiking

Hard hike. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required. The starting point of the route is accessible with public transport.

Last updated: May 6, 2026

Tips

Includes a segment that may be dangerous

A part of this route comprises technical, difficult, or hazardous terrain. Specialist equipment and prior experience may be required.

After 5.60 km for 1.63 km

Waypoints

A

Start point

Train Station

Get Directions

1

1.29 km

Traditional Village Pathway in Valais

Highlight • Trail

2

2.17 km

Suonen Trail in Valais

Highlight • Trail

The path leads along the bisses

Translated by Google •

Tip by

3

2.38 km

EXPERIENCE WORLD UNESCO WORLD HERITAGE
The UNESCO World Heritage Swiss Alps Jungfrau-Aletsch is one of the most beautiful and valuable mountain landscapes in the world. The world heritage stretches from the eternal ice in the high mountains to the Mediterranean steppe landscape in the south and documents current climate change. The imposing north faces of the Bernese High Alps embody impressive evidence of the alpine mountain formation.
Text / source: Swiss Alps Jungfrau-Aletsch
wnf.ch

Translated by Google •

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4

2.55 km

Gorperi Suone

Highlight • Structure

Suonen are the historic irrigation canals of the Valais. These consist of open trenches that bring the precious and fertile water from the mountain streams - sometimes in an adventurous way - to the dry pastures and fields, to the vineyards or to the orchards. Many of the bisses are still in operation today and are carefully maintained. Since the suonen were very important as a water supply for the cultures and villages and their construction and maintenance was very dangerous, the people working on them had an important function and a corresponding reputation in the village community. The suonen partly overcome larger obstacles such as rock walls or scree slopes, for which special techniques have been developed over the centuries. In the rock walls, the suonen run in wooden channels that are suspended from beams along with a catwalk. The beams are wedged in holes made in the rock. To monitor the flow of water, small water wheels are sometimes used, which drive a hammer hitting a wood. The hammer blows can be felt over great distances and confirm the flow of water. More bisses have been created on the dry southern slopes than on the northern slopes. Most of the bisse are 500 m to 2 km long, the longest bisse is the 32 km long Bisse de Saxon.
Text / source: Brig Simplon Tourismus AG

Translated by Google •

Tip by

5

3.31 km

Easy hike, but some places will take your breath away. Only boards at the edge, in some places no ropes. You should not be afraid of heights!

Translated by Google •

Tip by

6

4.35 km

Bisse de Savièse Waterfall

Highlight • Waterfall

The hiking trail leads under a waterfall. Depending on the amount of water, this can be very adventurous. ;-)

Showing Translation

Tip by

7

4.43 km

Suonen Trail in Valais

Highlight • Trail

Why the suonen are the lifelines of the Valais
The water pipes, watercourses or suonen, French for “bisses”, run through the country like blood vessels in a human body - today they are almost 2000 kilometers long. Most of them are likely to have originated between 900 and 1000 years ago. Whether copied in North Africa, as some say, or invented by themselves: necessity makes people inventive - even when it comes to cheating on the lack of precipitation. There is plenty of water in the glacier region of Valais, but it is in the wrong place for the people: almost inaccessible in the deep gorges of the streams. The Suonen make this water usable for people. And as dream paths they open up the unique natural and cultural landscape of the Valais.
Suonen are dividing lines in many Valais landscapes: late in summer, when the rocky steppe withers and yellows, the mats and meadows below the suonen are lush green because they are watered. Their water is particularly suitable for irrigation for two reasons: Glacier water - as you can easily see from its cloudiness - contains considerable amounts of minerals and natural suspended matter such as phosphorus, lime and lots of potassium and magnesium salts. This is pure natural fertilizer. The air provides oxygen and the sun on the south-facing slopes provides heat. On its long way through meadows and along rock faces, the glacier water warms up by several degrees. This later reduces the cold shock when watering flowers and grasses. Traditional irrigation, with its gentle methods, has produced the biodiversity that, together with the late cutting of the hay meadows, made up the inestimable value of the Valais cultural landscape and, in some cases, still does today.
Before mechanization, the water from the glacier streams, which was conducted over the suonen, made everyday life easier for people: Its power drove sawmills and mills and thus made it possible to build houses; Hydropower ground the flour used to bake rye bread. But the modern irrigation systems with their water cannons also have a beneficial effect in the end: The management is still facilitated and that is why the bisses keep their function.
Suonen also protect the landscape: they repeatedly release water into their surroundings and thus defend against erosion on entire valley flanks through vegetation. In the event of forest fires, their water can still be used for extinguishing purposes. The canton has therefore made the maintenance of important old water pipes a condition since the 1980s if modern irrigation systems are to be approved. Only natural materials may be used for maintenance.
Text / source: By Luzius Theler, revision of the management center
myswissalps.ch/story/480

Translated by Google •

Tip by

10.1 km

Honegga

Viewpoint

9

12.2 km

Beautiful Forest in Valais

Highlight • Forest

B

16.4 km

End point

Train Station

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Way Types & Surfaces

Way Types

10.1 km

4.41 km

1.07 km

290 m

280 m

237 m

Surfaces

6.85 km

4.02 km

3.49 km

1.22 km

385 m

382 m

< 100 m

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Elevation

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Weather

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Monday 8 June

14°C

6°C

52 %

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Max wind speed: 8.0 km/h

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