Circular route Aual Claif

In the dry Val Müstair, meadows and fields have been artificially irrigated for centuries to secure and increase yield. Water was often channeled over long distances from tributaries or even from the main river Rom to the agricultural areas.

As part of comprehensive agricultural land improvement, a network of modern irrigation systems was installed in Val Müstair, and the Auals gradually lost importance. With the discontinuation of the use of the Auals, the old craft and knowledge also faded from memory. Today, the value and functions of the Auals are mainly cultural-historical. But biodiversity also benefits from the still water-carrying Auals. Thanks to an initiative by the Swiss Landscape Foundation, the municipality of Val Müstair, and the nature park, selected Auals have been renovated for several years and the remains of former Auals in the terrain made visible again.