Giona (river)

Not to be confused with Jona (river).

The Giona is a ‘torrent’, or intermittent stream, which rises on the slopes of Monte Tamaro, in the Swiss canton of Ticino. After about 2 kilometres (1.2 mi), it enters the Italian province of Varese, forming the Val Veddasca before entering Lake Maggiore at Maccagno. Its course passes through the communes of Indemini in Switzerland and Veddasca, Curiglia con Monteviasco, Dumenza and Maccagno in Italy.

Giona
Location
Country	Switzerland, Italy
Physical characteristics
Source
• location	Monte Tamaro
• elevation	1,100 m (3,600 ft)
Mouth
• location	Lago Maggiore at Maccagno
• coordinates	46.0390°N 8.7325°E / 46.0390; 8.7325
Length	10.2 km (6.3 mi)
Basin features
Progression	Lake Maggiore→ Ticino→ Po→ Adriatic Sea

The fish found in the river are predominantly Salmonidae, Cyprinidae and Cottidae, in particular brown trout, grayling, chub, vairone and European bullhead.^[1]

The river is put to use as a source of hydropower.