Altenau (Oker)

Altenau
Altenau ford near Küblingen
Location of mouth in Lower Saxony
Location
Country	Germany
State	Lower Saxony
Reference no.	DE: 4826
Physical characteristics
Source
• location	northeast of Eitzum in the Elm
• coordinates	52°10′08″N 10°51′17″E / 52.16889°N 10.85472°E / 52.16889; 10.85472
• elevation	about 206 m
Mouth
• location	Oker near Wolfenbüttel
• coordinates	52°08′10″N 10°33′24″E / 52.136175°N 10.556703°E / 52.136175; 10.556703
• elevation	77 m
Length	25.0 km (15.5 mi) [1]
Basin size	140 km2 (54 sq mi) [1]
Basin features
Progression	Oker→ Aller→ Weser→ North Sea
Landmarks	Small towns: Schöppenstedt
Tributaries
• left	Rothebach
• right	Sauerbach, Hachumerbach, Glue Riede

The Altenau is a small river of Lower Saxony, Germany. It rises in the Elm, northeast of Eitzum [de], a district of Schöppenstedt, and discharges from the right into the Oker near Halchter [de], a district of Wolfenbüttel.