Arnoia

Water type: River
Continent: Europe
Climate: Subtropical
Country: Spain

The River Arnoia (Galician: río Arnoia) is a tributary of the río Miño in Galicia, northwest Spain. At 84.5 kilometers, it is the longest river in the province of Ourense. The Spanish wine denominación de origen protegida of Ribeiro DOP is located at the confluences of the valleys formed by the rivers Miño, Avia, and Arnoia.