It flows about 1,897 km (1,179 mi)[1] from Changbai Mountains on the China–North Korea border through China's northeastern Jilin and Heilongjiang provinces.

A new dam was constructed in 2007 near Bayan (50 km northeast of Harbin), creating the Dadingshan Reservoir,[5] which is named after the scenic area on the south bank (Chinese: 大頂山; pinyin: dàdǐngshān; lit.

The river flows onward through Jiamusi and south of the Lesser Xing'an Range, to eventually join the Amur at Tongjiang, Heilongjiang.

[citation needed] The spill stretched 80 kilometers (50 mi) and eventually reached the Amur (Heilong) River on the China–Russia border.

[6] On July 28, 2010, several thousand barrels from two chemical plants in China's Jilin City were washed away by floods.