‧Origin：Chihsin Hill of Linnei Township, the hill area in west side of Ali Mountains.
‧Mainstream：Beigang River
‧Tributary： Huwei River, Sandie River, Shigui River, Shiniu River, Dahukao River, Gan River, Dapu River, Neilin River, Shiliuban River, Shizihkeng River, Haifenglun River, Yunlin River, Bajiao River, Lunzi River, and Jiuqiongkeng River.
‧Watershed area： 645.21 square kilometers
‧Total tributary length：82 kilometer
‧Planned flood quantity：5,000 cubic meters/ per second
‧Average slope difference：1 : 159
‧Municipalities the River flows through：
Yunlin County：Linnei Township, Gukeng Township, Douliou City, Cihtong Township, Dounan Township, Huwei Township, Tuku Township, Yungchang Township, Dapei Township, Beigang Township, Shueilin Township, Kouhu Township
Chiayi County：Meishan Township, Dalin Township, Minsyong Township, Sikou Township, Singang Township, Lioujiao Township, Dongshih Township
‧Beigang River System Map：
