Bregenzer Ach
The 883rd longest river in the world
The Bregenzer Ach (also: Bregenzer Ache) is the main river of the Bregenz Forest (Bregenzerwald) in the Austrian state of Vorarlberg. It is a tributary to Lake Constance and the River Rhine, respectively.
Flows through: Austria.
River data from Wikidata (CC0); lengths normalised to a common unit.