Aller River

General data
- Water type: River
- Progression: Weser -> Wadden Sea -> North Sea -> Atlantic Ocean -> Planet Earth
- Climates: Continental
- Continents: Europe
- Countries: Germany
Description
The Aller is a 215-kilometre-long river in the states of Saxony-Anhalt and Lower Saxony in Germany. It is a right-hand, and hence eastern, tributary of the Weser and is also its largest tributary.