Eo (river)

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Eo
View of Eo River, Ramsar Site
Location
Country	Spain
Physical characteristics
Source
• location	Baleira
• elevation	850 m (2,790 ft)
Mouth
• location	Atlantic
Length	91.5 km (56.9 mi)
Basin size	819 km2 (316 sq mi)
Discharge
• average	20.11 m3/s (710 cu ft/s)
Ramsar Wetland
Official name	Río Eo
Designated	4 October 1994
Reference no.	705[1]

The Eo is a river, 91 kilometres (57 mi) long, in northwestern Spain. Its estuary forms the boundary between the regions of Galicia and Asturias. The river is known for its salmon fishing.

In the western Cantabrian mountains the river forms the axis of one of Asturias 7 biosphere reserves, the Eo river, Oscos and Terras de Burón Biosphere Reserve.^[2]