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Altenau


Location
Country	Germany
State	North Rhine-Westphalia
Physical characteristics
Mouth
• location	Alme
• coordinates	51°40′17″N 8°43′03″E / 51.6714°N 8.7175°E / 51.6714; 8.7175
Length	29.1 km (18.1 mi)^[1]
Basin size	335 km² (129 sq mi)^[1]
Basin features
Progression	Alme→ Lippe→ Rhine→ North Sea

Altenau is a river of North Rhine-Westphalia, Germany. It is a right tributary of the Alme, which it joins in Borchen.

^ ^a ^b Hydrographic Directory of the NRW State Office for Nature, the Environment and Consumer Protection (Gewässerverzeichnis des Landesamtes für Natur, Umwelt und Verbraucherschutz NRW 2010) (xls; 4.67 MB)