Gauja
River in Europe
The Gauja River is a river in the Vidzeme region of Latvia. It is the only large river of Latvia that begins and ends its flow in Latvia. Its length is 460 km, of which 93.5 km are in Gauja National Park. Wikipedia
Source: Vidzemes Centrala Augstiene
Length: 281 mi
Mouths: Carnikava and Gulf of Riga
Basin size: 9,800 km2 (3,800 sq mi)