Zwiefalter Aach

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Zwiefalter Aach
Zwiefalter Aach in Zwiefaltendorf
Mouth of the Ziefalter Aach
Location
Country	Germany
State	Baden-Württemberg
Physical characteristics
Mouth
• location	Danube
• coordinates	48°15′33″N 9°26′53″E / 48.25917°N 9.44806°E / 48.25917; 9.44806
Length	8.9 km (5.5 mi) [1]
Basin features
Progression	Danube→ Black Sea

The Zwiefalter Aach or Zwiefalter Ach is a river in Reutlingen district and Biberach district in Baden-Württemberg, Germany. It is approximately 9 kilometres long and is a tributary of the Danube near Zwiefalten. The river is known for the Wimsener Höhle.^[2]