Provinsi Kanchanaburi

The province is in the west of Thailand, 129 km from Bangkok, and covers a total area of approximately 19,483 km². It is the country's third largest province, after Nakhon Ratchasima and Chiang Mai. Topographically, it is covered with timber and evergreen forests. The district covers the source valleys of the rivers Kwae Yai and Kwae Noi ("River Kwai"), which merge at Kanchanaburi city to form the Mae Klong River.