In the Valais' lower valleys, bisses were earthen cut. The excavation debris buttressed the channel's outer banks, like in Torrent Neuf's forested downstream segment, known as Bisse de Ste Marguerite. Fed by the Tsanfleuron Glacier, Saviésans like Lydwine Bruchez continue to draw water from it. The farmer grazes horses, Héren cattle and a flock of 120 organic Suffolk sheep on her 60 hectares.

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