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Dreierwalder Aa (also: Ibbenbürener Aa, Ledder Mühlenbach, Hörsteler Aa) is a river of North Rhine-Westphalia, Germany. It flows into the Speller Aa in Spelle.
| Dreierwalder Aa | |
|---|---|
 | |
| Location | |
| Country | Germany |
| State | North Rhine-Westphalia |
| Physical characteristics | |
| Mouth | |
• location | Speller Aa |
• coordinates | 52°21′42″N 7°28′30″E / 52.3618°N 7.4751°E |
| Length | 36.1 km (22.4 mi) [1] |
| Basin size | 139 km2 (54 sq mi) [1] |
| Basin features | |
| Progression | Speller Aa→ Große Aa→ Ems→ North Sea |
See also edit
References edit