Strudengau#
Strudengau Valley, Lower Austria, narrow meandering valley of the River Danube from Ardagger Markt to Ybbs an der Donau; is followed by the Nibelungengau in the east. Up to Sarmingstein the northern bank of the Danube lies on Upper Austrian territory and forms part of the Bohemian Massif. The southern bank lies on Lower Austrian territory and is formed by the plateau of Neustadtl an der Donau, also part of the Bohemian Massif, and Hengstberg hill (571 m). The Strudengau valley used to be one of the most dangerous sections of the Danube for navigation, and it was only the construction of the reservoir of the Ybbs-Persenbeug power station (1957) that solved the problem. Villages: Grein (alt. 239 m), Struden (alt. 232 m), Hirschenau (alt. 239 m) and Persenbeug (alt. 222 m).