Wikidata facts
- Instance of
- river
- Country
- Switzerland
- Located in
- Canton of Zurich
- Elevation
- 440
- Image
- Robenhauser Riet - Wetzikon - Pfäffikersee - Seegräben IMG 4877.JPG
- Length
- 10.9
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- Commons category
- Ustermer Aa
- mouth of the watercourse
- Greifensee
- waterbody number
- CH/607
- origin of the watercourse
- Pfäffikersee
- watershed area
- 62.75
- discharge
- 1.61
- drainage basin
- Rhine basin
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