According to the Wikipedia the Saar is a river locates in western Germany and northeastern France and it is a right tributary of the Moselle. Saar River covers a total length of 246 kilometers with a basin area of 7,431 square kilometers. The river rises the Vosges mountains on the border of Alsace and Lorraine and flows northwards into the Moselle near Trier. The Saar River flows across France about 126 kilometers and in Germany around 120 kilometers. Then it flows into the Moselle at Konz between the border of Trier and the Luxembourg.