The Isorno is an Italian

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 Swiss

Switzerland

Switzerland name of one of the Swiss cantons. ; ; ; or ), in its full name the Swiss Confederation , is a federal republic consisting of 26 cantons, with Bern as the seat of the federal authorities. The country is situated in Western Europe,Or Central Europe depending on the definition....

 river, a tributary of the Melezzo Orientale

Melezzo Orientale

The Melezzo Orientale, or simply the Melezzo, in Switzerland the Melezza, is a 40 km Alpine torrent which runs through the eastern part of the Val Vigezzo, in the Province of Verbano Cusio Ossola, northern Italy; and through the Centovalli of Canton Ticino, Switzerland...

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Its source is in Italy near Pioda di Crana. It passes through Bagni, a frazione

Frazione

A frazione , in Italy, is the name given in administrative law to a type of territorial subdivision of a comune; for other administrative divisions, see municipio, circoscrizione, quartiere...

of Craveggia

Craveggia

Craveggia is a comune in the Province of Verbano-Cusio-Ossola in the Italian region Piedmont, located about 130 km northeast of Turin and about 20 km north of Domodossola, on the border with Switzerland...

, then entering Switzerland it flows through Onsernone

Onsernone

Onsernone is a municipality in the Swiss canton of Ticino, near the city of Locarno. The river Isorno runs through this valley.The municipality was created in 1995 by a merger of Comologno, Crana and Russo.-History:...

, Mosogno

Mosogno

Mosogno is a municipality in the district of Locarno in the canton of Ticino in Switzerland.-History:Mosogno is first mentioned in 1277 as Mosogno. In 1352 it was mentioned as Muxognio. In the Middle Ages, it was one of the five Squadre that made up the community of Onsernone. It became an...

, Isorno

Isorno

Isorno is a municipality in the district of Locarno in the canton of Ticino in Switzerland.The municipality was created in 2001 by a merger of Auressio, Berzona and Loco.-History:...

 and Intragna

Intragna, Switzerland

Intragna was a municipality in the district of Locarno in the canton of Ticino in Switzerland. On 25 October 2009 the municipalities of Borgnone, Intragna and Palagnedra merged into the municipality of Centovalli....

, where it joins the Melezzo Orientale.

Its valley, although easily reached from Lugano

Lugano

Lugano is a city of inhabitants in the city proper and a total of over 145,000 people in the agglomeration/city region, in the south of Switzerland, in the Italian-speaking canton of Ticino, which borders Italy...

, Bellinzona

Bellinzona

Bellinzona is the administrative capital of the canton Ticino in Switzerland. The city is famous for its three castles that have been UNESCO World Heritage Sites since 2000....

, Domodossola

Domodossola

Domodossola is a city and comune in the Province of Verbano-Cusio-Ossola, in the region of Piedmont, northern Italy...

 and Locarno

Locarno

Locarno is the capital of the Locarno district, located on the northern tip of Lake Maggiore in the Swiss canton of Ticino, close to Ascona at the foot of the Alps. It has a population of about 15,000...

, is one of the wildest in Switzerland, and there is a proposal to institute a national park

National park

A national park is a reserve of natural, semi-natural, or developed land that a sovereign state declares or owns. Although individual nations designate their own national parks differently A national park is a reserve of natural, semi-natural, or developed land that a sovereign state declares or...

 like that of Engadin

Engadin

The Engadin or Engadine is a long valley in the Swiss Alps located in the canton of Graubünden in southeast Switzerland. It follows the route of the Inn River from its headwaters at Maloja Pass running northeast until the Inn flows into Austria one hundred kilometers downstream...

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Sources

This original version of this article included text translated from its counterpart in the Italian Wikipedia

Italian Wikipedia

The Italian Wikipedia is the Italian-language edition of Wikipedia. This edition was created on May 11, 2001 and first edited on June 11, 2001. As of 2011 it has over articles and more than registered accounts...

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