The Boesio is a river (

intermittent stream Intermittent, temporary or seasonal rivers or streams cease to flow every year or at least twice every five years.(Tzoraki et al., 2007) Such rivers drain large arid and semi-arid areas, covering approximately a third of the earth's surface. ...

) in Valcuvia, a valley in the north of the province of Varese, Lombardy,

Italy Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. It is located in the middle of the Mediterranean Sea, and its territory largely coincides with the homonymous geographical ...

. It rises near

Cuveglio Cuveglio is a ''comune'' (municipality) in the Province of Varese in the Italian region Lombardy, located about northwest of Milan and about northwest of Varese. As of 31 December 2004, it had a population of 3,228 and an area of .All demographic ...

and flowing in an east–west direction before entering

Lake Maggiore Lake Maggiore (, ; it, Lago Maggiore ; lmo, label=Western Lombard, Lagh Maggior; pms, Lagh Magior; literally 'Greater Lake') or Verbano (; la, Lacus Verbanus) is a large lake located on the south side of the Alps. It is the second largest l ...

Laveno-Mombello Laveno-Mombello is a ''comune'' (municipality) in the Province of Varese in the Italian region Lombardy, located about northwest of Milan and about northwest of Varese. As of 31 December 2004, it had a population of 8,991 and an area of .All d ...

. The river's course takes it through the

communes An intentional community is a voluntary residential community which is designed to have a high degree of social cohesion and teamwork from the start. The members of an intentional community typically hold a common social, political, relig ...

of Cuveglio,

Cuvio Cuvio ( lmo, Cüj, label=Western Lombard) is a ''comune'' (municipality) in the Province of Varese in the Italian region Lombardy, located about northwest of Milan and about northwest of Varese Varese ( , , or ; lmo, label=Varesino, Varés ...

Casalzuigno Casalzuigno is a ''comune'' (municipality) in the Province of Varese in the Italian region Lombardy, located about northwest of Milan and about northwest of Varese. Casalzuigno includes the Villa Della Porta Bozzolo, a 16th-century villa belon ...

Azzio Azzio is a town and ''comune'' located in the province of Varese, in the Lombardy region of northern Italy Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. It is located ...

, Brenta,

Gemonio Gemonio is a ''comune'' (municipality) in the Province of Varese in the Lombardy region of Italy, located about northwest of Milan and about northwest of Varese. As of 31 December 2004, it had a population of 2,702 and an area of .All demographic ...

, Cittiglio and Laveno-Mombello. The state road SS 394 follows in part the course of the river. Fish found in the river include

Salmonidae Salmonidae is a family of ray-finned fish that constitutes the only currently extant family in the order Salmoniformes . It includes salmon (both Atlantic and Pacific species), trout (both ocean-going and landlocked), chars, freshwater whitefis ...

and Cyprinidae, in particular brown trout and

vairone ''Telestes muticellus'' is a species of ray-finned fish in the family Cyprinidae. Commonly known as vairone, it is found in France, Italy, and Switzerland. Its natural habitats are river A river is a natural flowing watercourse, us ...

(''Leuciscus souffia''). The waters of the river are

polluted Pollution is the introduction of contaminants into the natural environment that cause adverse change. Pollution can take the form of any substance (solid, liquid, or gas) or energy (such as radioactivity, heat, sound, or light). Pollutants, the ...

.''Bacinio del Torrente Boesio: Carta delle vocazioni ittiche''
, Provincia di Varese.

Notes

Rivers of the Province of Varese Rivers of Italy {{Italy-river-stub