The Sauer is a river in France (Alsace) and Germany (Rhineland-Palatinate). A left tributary of the river Rhine, its total length is about 85 kilometres (53 mi), of which 64 km (40 mi) in France.^[1] Its upper course, in Germany, is called Saarbach. Its source is in the Palatinate forest, near the French border, south of Pirmasens. It flows into France near Schœnau, and continues through Wœrth and north of Haguenau. It flows into the Rhine in Seltz, opposite the mouth of the Murg.

Sauer
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Location
Countries	Germany and France
Physical characteristics
Source
• location	Palatine Forest
Mouth
• location	Rhine
• coordinates	48°54′55″N 8°9′25″E / 48.91528°N 8.15694°E / 48.91528; 8.15694
Length	~85 km (53 mi)
Basin features
Progression	Rhine→ North Sea