鸭川 Kama River

The Kama, also known as the Chulman, is a 1,805-kilometre long river in Russia. It has a drainage basin of 507,000 square kilometres. It is the longest left tributary of the Volga and the largest one in discharge. At their confluence, in fact, the Kama is even larger than the Volga.
  • Country: Russia
  • Source: Kama (river)
  • Mouth: Volga River
  • Length: 1,805 km (1,122 mi)
  • Basin size: 507,000 km² (196,000 sq mi)
  • Progression: Volga→ Caspian Sea
Data from: en.wikipedia.org