Worth a round every season. I have not seen any beaver yet. According to the Aargauer Zeitung, they should be found.
*** Excerpt from the Aargauer Zeitung
The beavers have discovered the south of Aargau. They often leave areas in the north of our canton and find new homes on streams and rivers in the south. The district migration to the south on the Reuss is pronounced.
In 2008, only one beaver family lived on the section between the Bremgarten-Zufikon dam and the cantonal border with Lucerne. In 2013, in the Aargau Reus valley, four families with four to five animals per family were lodged here, according to the national inventory survey conducted every five years.
Gnash traces on trees and shrubs indicate that the beaver population has continued to increase in this Freiämter Reuss section. The area currently inhabits five or six families and a few individual animals. Beaver family areas include the Sporen at the Dominiloch-Steg, the Werderhölzli, the area between the Rottenschwiler and the Werder bridge or the area of the Reuss bridge between Birri and Ottenbach.