Where does the Yalu River flow?

The Yalu River originates in Tian Lake atop Mount Baitou on the border between China and North Korea. From this mountainous source in the Changbai Mountains, the river winds southward to Hyesan, North Korea, and then meanders northwestward to reach Linjiang in Jilin province.1

From Linjiang, the river flows southwestward for approximately 200 miles (320 km) before emptying into Korea Bay, an embayment of the Yellow Sea. Throughout its course, the river serves as the northwestern boundary between North Korea and the Northeast region of China, bordering both Jilin and Liaoning provinces.12