The trail starts with a long climb, on an incline gentle enough to run up to the Antronapass. Some easy scrambling follows, and finally a fast downhill finish.
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Starting in Saas-Almagell, the 21-kilometre loop leads over an ancient salt trading (and smuggling) route, and connects two wild Swiss valleys, passing over the Italian border on its way. Switchbacks lead up through larch forest and into the secluded Furggtälli Valley. Heading to the back of the valley, easy running becomes rockier and more technical as you approach the Antronapass, where you cross into Italy and make your way around the Jazzihorn before returning to Switzerland at Jazzilücke. At that point, you’ve gained nearly 1400 metres, now it's time to descend the same distance. The steep descent to the Ofental eventually levels out and the trail provides a mix of both technical and fast running. Speeding down to the Mattmark dam might be the first time you meet other people on this otherwise remote route. Stride alongside the turquoise water of the lake before descending to Saas-Almagell.