The Salza is an eastern tributary of the Enns

Enns

Enns may refer to:* Enns , Upper Austria, Austria* Enns , a surname* Enns , a southern tributary of the Danube River...

. It originates on the Traisenberg in Lower Austria

Lower Austria

Lower Austria is the northeasternmost state of the nine states in Austria. The capital of Lower Austria since 1986 is Sankt Pölten, the most recently designated capital town in Austria. The capital of Lower Austria had formerly been Vienna, even though Vienna is not officially part of Lower Austria...

 and flows South of Mariazell

Mariazell

Mariazell is a small city in Austria, in Styria, well known for winter sports, 143 km N. of Graz. It is picturesquely situated in the valley of the Salza, amid the north Styrian Alps....

 through the Styrian nature preserve of Wildalpener Salzatal. After 88 km, it meets the Enns around Großreifling.

Below the town of Weichselboden is the Prescenyklause, which was constructed with a weir

Weir

A weir is a small overflow dam used to alter the flow characteristics of a river or stream. In most cases weirs take the form of a barrier across the river that causes water to pool behind the structure , but allows water to flow over the top...

 for a saw mill in 1848. Today the water of the reservoir is used to power a small electric power plant. Downstream from the reservoir, the Salza is a favorite site for kayak

Kayak

A kayak is a small, relatively narrow, human-powered boat primarily designed to be manually propelled by means of a double blade paddle.The traditional kayak has a covered deck and one or more cockpits, each seating one paddler...

ers.

Many sources and tiny tributaries feed into the Salza and their water is used for the Viennese water supply.