It originates on the mountain Traisenberg [de] in Lower Austria and flows South of Mariazell through the Styrian nature preserve Wildalpener Salzatal [de].

After 90 km (56 mi), it flows into the Enns near Großreifling [de; fr] (part of Landl).

Downstream from the reservoir, the Salza is a favorite site for kayakers.

Numerous springs of small tributaries of the Salza have been captured and are used for the Viennese water supply.

This article related to a river in Austria is a stub.