Wang Thong River

[1] 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, where it drains into the Nan River at 16°31′06″N 100°19′36″E / 16.51833°N 100.32667°E / 16.51833; 100.32667.

[2] The land drained by the Wang Thong River is part of the Nan Basin and the Chao Phraya Watershed.

[5] In 1982, a plan to reintroduce the Brotherly Villages Boat Race was discussed by senior local officials, the traders of the Wang Thong Market, farmer organizations and the abbot of Wat Bang Saphan to promote the unity of the community.

The swamp was renovated in 1994 by Phitsanulok Provincial Administration Organization, and is now a popular tourist attraction.

[8] A study has been done at Naresuan University, Faculty of Engineering, to consider the practicalities of using the river's 18-metre (60 ft) drop within the Salaeng Luang National Park to generate hydroelectric power.

[9] Kaeng Bang Rachan at the source of the Wang Thong is a natural habitat for the freshwater jellyfish (Craspedacusta sowerbii) which is presently found in only the United States, Russia, the United Kingdom, Japan and Thailand.

[10] Also, it is a natural habitat for rare species of butterflies such as kaiser, Troides helena and Euploea.

Kaeng Bang Rachan