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|Main source||Tyrol, Austria|
|River mouth||Inn River|
|Length||~ 35 km (22 mi)|
The Ötztaler Ache is a right tributary of the Inn River in the Imst (district) and flows through the Ötztal valley with a length of approximately 35 kilometres (22 mi). It merges with the Inn River 8 kilometres (5.0 mi) east of Imst. The river is one of the bigger tributaries.