Yalu river

Yalu (鸭绿江/鴨綠江, ᠶᠠᠯᡠ ᡠᠯᠠ)
Amnok (압록강; 鴨綠江)
Name origin: Manchu, "the boundary between two countries"
Countries	China (PRC), North Korea (PRK)
Provinces	Jilin (PRC), Liaoning (PRC), Ryanggang (PRK), Chagang (PRK), North Pyongan (PRK), Sinuiju SAR (PRK)
Source	South of Heaven Lake, PRC-PRK border, Paektu Mountain
- coordinates	41°58′8″N 128°4′24″E / 41.96889°N 128.07333°E / 41.96889; 128.07333
Mouth	Korea Bay
- coordinates	39°52′N 124°19′E / 39.867°N 124.317°E / 39.867; 124.317Coordinates: 39°52′N 124°19′E / 39.867°N 124.317°E / 39.867; 124.317
Length	790 km (491 mi)
Location of the Yalu River

The Yalu River, also called the Amnok River (Korean pronunciation: [amnok.k͈aŋ]), is a river on the border between North Korea and China. Together with the Tumen River to its east, and a small portion of Paektu Mountain, the Yalu forms the border between North Korea and China and is notable as a site involved in military conflicts in the First Sino-Japanese War, the Russo-Japanese War, World War II, and the Korean War.

There are two versions regarding the origin of the river name. One version is that the name derived from "Yalv ula" in the Manchu language. The Manchu word "Yalu" means "the boundary between two countries". In Mandarin Chinese, "Yalu" phonetically approximates the original Manchu word "Yalu", but literally means "Duck Green", which was said to have been once the color of the river. The other version is that the river was named after the combination of its two upper branches, which were called "Ya" and "Lu" respectively.

From 2500 m above sea level on Paektu Mountain on the China–North Korea border, the river flows south to Hyesan before sweeping 130 km northwest to Linjiang and then returning to a more southerly route for a further 300 km to empty into the Korea Bay between Dandong (China) and Sinuiju (North Korea). The bordering Chinese provinces are Jilin and Liaoning.