The
Saar is a river in northeastern
France and western
Germany, and a right tributary of the
Moselle. It rises in the
Vosges mountains on the border of
Alsace and Lorraine and flows northwards into the Moselle near
Trier. It has two headstreams (the
Sarre Rouge and
Sarre Blanche, which join in
Lorquin), that both start near
Mont Donon, the highest peak of the northern Vosges. After (126 kilometres in France and 120 kilometres in Germany) the Saar flows into the Moselle at Konz (
Rhineland-Palatinate) between Trier and the Luxembourg border. It has a
catchment area of .