The Wang Thong River (Thai: แคววังทอง, , Thai: [kʰwɛː], also known as the Khek River) is a river in Thailand. Its source lies in the Phetchabun Mountains in the Khao Kho District, Thailand. It flows through Thung Salaeng Luang National Park and forms Namtok Sri Dit and Namtok Kaeng Sopha (Kaeng Sopha Waterfall) in the Wang Thong District of Phitsanulok Province, and finally flows through into the Bang Krathum District, passing through Ban Sam Ruen and on to the border of Phitsanulok and Phichit,…