With a total length of 124 km (77 mi) it is sixth-longest river on the island.

The same name appears in English as the Wu River, the pinyin romanization of its Mandarin pronunciation.

It received the name from the many black-winged birds that used to live along the river.

[4][5][6] It is the 6th-longest river on Taiwan Island and the 4th-largest in terms of drainage area.

This article related to a river in Taiwan is a stub.