The Orco (Piedmontese: Eva d'òr, that is lit. Water of gold; Latin: Orgus[3]) is an Italian river. It originates in the Piedmontese slopes of Gran Paradiso and after about 90 kilometres (56 mi) reaches the Po river near Chivasso, in the Metropolitan City of Turin. Its drainage basin is home to the most important complex of hydropower in Piedmont, consisting of six major dams (Agnel, Serrù, Ceresole Reale, Teleccio, Piantonetto, Valsoera), many smaller reservoirs and numerous turbines and power stations.

Orco
The Orco near Rivarolo Canavese
Orco location
Location
Country	Italy
Physical characteristics
Source
• location	Gran Paradiso
• elevation	about 2,600 m (8,500 ft)
Mouth
• location	Po at Chivasso
• coordinates	45°11′00″N 7°52′30″E
Length	89.568 km (55.655 mi)[1]
Basin size	889.4 km2 (343.4 sq mi)[2]
Discharge
• average	23.9 m3/s (840 cu ft/s)[2]
Basin features
Progression	Po→ Adriatic Sea
Tributaries
• left	Piantonetto, Eugio, Ribordone, Soana, Piova, Malesina
• right	Gallenca

The Orco is known also for its gold-bearing sand, extracted already in antiquity. Even today there is a certain activity, on an amateur level, searching for grains of gold.[4]

See also

• Orco Valley

Notes

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