The river is 521 km long, rising in the Changbai/Jangbaek Mountains and flowing into the Sea of Japan.

The Tumen River, also known as the Duman River (in Korean), is a river in northeast Asia, on the border between China and North Korea in its upper reaches, and between North Korea and Russia in its lower stretches. The name of the river comes from the Jurchen tumen. This river is badly polluted by the nearby factories, however, it still remains a major tourist attraction in the area. The tumen river for years has been used as a means for North Korean refugees to defect across the Chinese border. It should also be noted that the tumen river is indeed patrolled heavily by armed guards of the DRPK; who by instruction are on a shoot-to-kill watch. Defectors who wish to cross the tumen often ignore its pollutants and high risk border patrol, and spend weeks if not months or years waiting for the perfect opportunity to cross the DRPK-Chinese border.

See also

• Geography of China
• Geography of North Korea
• List of Korea-related topics
• List of rivers of Asia

Rivers of North Korea | Rivers of China | Rivers of Russia

Tumen | Tumen (fleuve) | 두만강 | 豆満江 | Туманная (река) | Tumenfloden | 图们江