Siglistorf is a municipality in the Swiss canton that is situated by the lower course of what river?
Siglistorf: Siglistorf is a municipality in the district of Zurzach in the canton of Aargau in Switzerland. Aargau: The canton of Aargau (German "Kanton"    ; sometimes anglicized Argovia; see also other names) is one of the more northerly cantons of Switzerland. Aargau:  It is situated by the lower course of the Aare, which is why the canton is called Aar-gau (meaning "Aare province").
Aare