Juodupė is a river of Biržai district municipality,

Panevėžys County Panevėžys County ( lt, Panevėžio apskritis) is one of ten counties of Lithuania, counties in Lithuania. It is in the north-east of the country, and its Capital (political), capital is Panevėžys. On 1 July 2010, the county administration ...

, northern

Lithuania Lithuania (; lt, Lietuva ), officially the Republic of Lithuania ( lt, Lietuvos Respublika, links=no ), is a country in the Baltic region of Europe. It is one of three Baltic states and lies on the eastern shore of the Baltic Sea. Lithuania ...

. It flows for and has a basin area of .Juodupė – Visuotinė lietuvių enciklopedija
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References

Rivers of Lithuania Biržai District Municipality {{Lithuania-river-stub