Origin of the Nan River near Bo Klua
The Nan River is the main river of Nan valley. It originates in the north-east of Nan, almost bordering Laos. Near Pua the Pua River contributes to the Nan River and near Wiang Sa the Wa River contributes to the Nan River. And of course along the way many small rivers contribute to the Nan River. The Nan Rivers goes south thru Si Nan National Park and near Uttaradit a dam in the Nan River creates the Queen Sirikit Lake. Near Sakhon Nawan the Nan River contributes to the Chao Phraya River. Along route 1081 is a sign for the "Nan River Origin" and there is a small parking. From there you have to make a small hiking into the jungle. Be aware that there is not much out there, actually nothing besides a nice small hiking trail with vaguely signs. And yes there are indeed in Nan - Thailand growing huge bamboo trees. Nearest town is Bo Klua, for more information about Bo Klua have a look at Introduction of Bo Klua.