The Slizza is an Alpine torrent in Italy

Italy

Italy , officially the Italian Republic languages]] under the European Charter for Regional or Minority Languages. In each of these, Italy's official name is as follows:;;;;;;;;), is a unitary parliamentary republic in South-Central Europe. To the north it borders France, Switzerland, Austria and...

 and Austria

Austria

Austria , officially the Republic of Austria , is a landlocked country of roughly 8.4 million people in Central Europe. It is bordered by the Czech Republic and Germany to the north, Slovakia and Hungary to the east, Slovenia and Italy to the south, and Switzerland and Liechtenstein to the...

, a right tributary of the Gail river.

Its source is below the Sella Nevea

Sella Nevea

Sella Nevea is a high mountain pass and ski resort in the Friuli-Venezia Giulia region of northeast Italy. Sella Nevea is a località of the comune of Chiusaforte, in the province of Udine.- Geography :...

 pass of the Julian Alps

Julian Alps

The Julian Alps are a mountain range of the Southern Limestone Alps that stretches from northeastern Italy to Slovenia, where they rise to 2,864 m at Mount Triglav. They are named after Julius Caesar, who founded the municipium of Cividale del Friuli at the foot of the mountains...

, where it is known as the Rio del Lago. Its valley leads to the north-west towards the town of Tarvisio

Tarvisio

Tarvisio is a town in the Province of Udine, in the northeastern part of the autonomous Friuli–Venezia Giulia region in Italy...

, where it enters the Val Canale and its waters are swelled by a number of tributaries. Near the village of Coccau it is joined by the Rio di Fussine and at the village of Thörl it crosses the border with Austria. It then passes through Arnoldstein

Arnoldstein

Arnoldstein is a market town in the district of Villach-Land in the Austrian state of Carinthia.-Location:Arnoldstein is located at Austria's southern border between the Carnic Alps and the Karawanken mountain range, near the confluence of the Gailitz and the Gail River...

 before entering the Gail.

The water quality of the Slizza has improved since the closure of the Arnoldstein lead works in the 1980s. It is today again the home range of fish like brown trout

Brown trout

The brown trout and the sea trout are fish of the same species....

, grayling

Grayling (species)

The grayling is a species of freshwater fish in the salmon family of order Salmoniformes. It is the type species of its genus. Native to the Palearctic ecozone, the grayling is widespread throughout northern Europe, from the United Kingdom and France to the Ural Mountains in Russia...

 and even European bullhead

European bullhead

The bullhead is a freshwater fish that is widely distributed in Europe, mainly in rivers. It is a member of the Cottidae family, a type of sculpin...

.