The river's name is derived from the German word Salz "salt" and Aach. Until the 19th century, shipping of salt down the Salzach was an important part of the local economy. The shipping ended when the parallel Salzburg-Tyrol Railway line replaced the old transport system.
Course
The Salzach is the main river in the Austrian state of Salzburg. The source is located on the edge of the Kitzbühel Alps near Krimml in the western Pinzgau region. Its headstreams drain several alpine pastures at around 2,300 metres (7,500 ft) (metres above the Adriatic), between Krimml and the Tyrolean state border, 3–5 kilometres (2–3 mi) north of the Gerlos Pass on the slopes of the Salzachgeier (2,466 m (8,091 ft)) and the nearby Schwebenkopf peak 2,354 m (7,723 ft)).
From the junction with its Saalach tributary in the northern Salzburg basin, the Salzach forms the border between Bavaria, Germany and the Austrian states of Salzburg and Upper Austria for almost 70 kilometres (43 mi). Cities on the banks in this lower section include Laufen and its sister town Oberndorf bei Salzburg, Tittmoning, and Burghausen. All these towns have border crossings.
The river finally empties into the Inn in Haiming between Burghausen and Braunau.