| Aabach | |
|---|---|
|  | |
| Location | |
| Country | Switzerland | 
| Physical characteristics | |
| Source | Pfäffikersee | 
| Mouth | Greifensee | 
|  • coordinates | 47°21′06″N 8°41′20″E / 47.3516°N 8.6888°E | 
| Basin features | |
| Progression | Greifensee→ Glatt→ Rhine→ North Sea | 
The Aabach (also Aa, or Ustermer Aa for disambiguation with the Mönchaltorfer Aa) is a minor river in the canton of Zürich, Switzerland. At a length of 11.2 kilometres (7.0 mi), it flows from Pfäffikersee to the Greifensee. Its valley is known as Aatal ("Aa Valley"), eponymous of the settlement Aathal.
Gallery
 Aabach on Lake Pfäffikon Aabach on Lake Pfäffikon
_IMG_4901.jpg.webp) Aabach reservoir in Wetzikon Aabach reservoir in Wetzikon
 Aabach nearby Aathal-Seegräben (Aa Valley) Aabach nearby Aathal-Seegräben (Aa Valley)
 Usterner Aa in Uster Usterner Aa in Uster
 Usterner Aa on Lake Greifen Usterner Aa on Lake Greifen
References
- Müller, Ueli: Aa (Aabach) in German, French and Italian in the online Historical Dictionary of Switzerland, 2000-09-20.
External links
 Media related to Ustermer Aa at Wikimedia Commons Media related to Ustermer Aa at Wikimedia Commons
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