The Isar (pronounced [ˈiːzaʁ] ) is a river in Austria and in Bavaria, Germany. Its source is in the Karwendel mountain range of the Alps. The Isar river enters Germany near Mittenwald and flows through Bad Tölz, Munich, and Landshut before reaching the Danube near Deggendorf. With 295 km length, it is among the longest rivers in Bavaria. It is Germany's second most important tributary of the Danube.
Distance between:
Madrid to Isar135 Miles / 218 Kms Barcelona to Isar322 Miles / 519 Kms
42.3617029,-3.9298355