A reservoir connected to the River Danube, with small reedbeds (Phragmites) and patches of forest. The site also includes the lower reaches of the River Riß and the dredged ponds near Rißtissen. A hydroelectric power-station is situated adjacent to the reservoir.
The site is important for wintering waterbirds. Breeding birds include Ciconia ciconia.
BirdLife International (2020) Important Bird Areas factsheet: Danube valley Untermarchtal-Ulm. Downloaded from http://www.birdlife.org on 08/08/2020.