Aa (also: ''Westfälische Aa'', "

Westphalia Westphalia (; german: Westfalen ; nds, Westfalen ) is a region of northwestern Germany and one of the three historic parts of the state of North Rhine-Westphalia. It has an area of and 7.9 million inhabitants. The territory of the regio ...

n Aa") is a river of

North Rhine-Westphalia North Rhine-Westphalia (german: Nordrhein-Westfalen, ; li, Noordrien-Wesfale ; nds, Noordrhien-Westfalen; ksh, Noodrhing-Wäßßfaale), commonly shortened to NRW (), is a state (''Land'') in Western Germany. With more than 18 million inha ...

Germany Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated betwe ...

. It is a left tributary of the

Werre The Werre is a river in the Detmold region (Regierungsbezirk) of North Rhine-Westphalia, Germany, left tributary of the Weser. Its source is near Horn-Bad Meinberg. The Werre flows generally north through the towns Detmold, Lage, Bad Salzuflen, ...

, which it joins in

Herford Herford (; nds, Hiarwede) is a town in North Rhine-Westphalia, Germany, located in the lowlands between the hill chains of the Wiehen Hills and the Teutoburg Forest. It is the capital of the district of Herford. Geography Geographic locat ...

. It is formed by the confluence of two small streams in

Bielefeld Bielefeld () is a city in the Ostwestfalen-Lippe Region in the north-east of North Rhine-Westphalia, Germany. With a population of 341,755, it is also the most populous city in the administrative region (''Regierungsbezirk'') of Detmold and the ...

-Milse. In its upper part, it is called Johannisbach.

References

Rivers of North Rhine-Westphalia Rivers of Germany {{NorthRhineWestphalia-river-stub

See also

References