Siglistorf is a municipality in the Swiss canton that is situated by the lower course of what river?
Aargau The canton of Aargau (German "Kanton"    ; sometimes anglicized Argovia; see also other names) is one of the more northerly cantons of Switzerland. It is situated by the lower course of the Aare, which is why the canton is called Aar-gau (meaning "Aare province"). It is one of the most densely populated regions of Switzerland.
Wüeribach The Wüeribach (also called the Dorfbach and Fischbach in its upper reaches) is a tributary of the Reppisch, around 8 kilometres long, in the Canton of Zürich in Switzerland. It rises in the municipality of Bonstetten, flows through the narrow "Wüerital" valley and reaches the Reppisch valley near Birmensdorf, wo it empties, parallel to the rather smaller Lunnerenbach, into the lower Reppisch. The Wüeribach is the longest and biggest tributary of the Reppisch and has an average flow rate of 310 l/s.