Aabach (Greifensee)
| 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.