| Description |
Originates from watersheds of the two mountainous ranges, Thanonthongchai and Peepunnam ranges. The system is drained by four major rivers: Ping River, Wang River, Yom River and Nan River, which conjunct into the mainstream of the Chao Phraya River at Pak Nampo. The river connects with three tributaries; Sakaekrung and Tachin from western, Pasak from the Petchabun Range, northeastern and Bangpakong from the Bantad Range, southeastern, then the system runs off to the Gulf of Thailand. |