Dornbirner Ache#
Dornbirner Ache River, also called Dornbirnerach, Vorarlberg, mountain river with headwater streams in the Bregenzerwald region, flows through the Alplochschlucht and the Rappenlochschlucht ravines (high waterfalls) and into Lake Constance in the Fussach Bay (parallel to the Rhine); highly contaminated lower course. 2.3 m3/sec average flow rate (at Lauterach).