The Mae Ping River, along with the Nan River, is one of the two main contributaries of Chao Phraya River. It originates at Doi Tuay, Daen Lao Range, in Chiang Dao district, Chiang Mai Province. After passing Chiang Mai town, it flows though the provinces Lamphun, Tak, and Kamphaeng Phet. At the confluence with the Nan River at Nakhon Sawan (also named Paknam Pho in Thai) it forms the Chao Phraya River.
The Ping Basin is one of the largest drainage basins of the Chao Phraya Watershed, draining 33,896 km² of land area.
The greater Ping Basin, i.e. the basin of the entire Ping river system including its tributary the Wang River drains a total of 44,688 km² of land area.
Mae Ping River
Location: Chiang Mai, Thailand