Phum Duang River
The Phum Duang River is a river in Surat Thani Province, southern Thailand, the main tributary of the Tapi River.
The rivers drains an area of west of the Tapi watershed, mainly the eastern slopes of the Phuket mountain range. It joins the estuary of the Tapi west of Surat Thani in Phunphin District.
The river has a total length of 80 km.