Lam Nam Wa (Thai: ลำน้ำว้า) is a watercourse of the Thai highlands in Thailand, and a tributary of the Nan River, part of the Chao Phraya River basin. It has its source beneath the 1,745-metre (5,725 ft) high Doi Phi Pan Nam mountain of the Luang Prabang Range. It joins the Nan River near Wiang Sa town in Wiang Sa District, Nan Province.
| Lam Wa | |
|---|---|
 | |
| Native name | ลำน้ำว้า (Thai) |
| Location | |
| Country | Thailand |
| State | Nan Province |
| District | Bo Kluea, Santi Suk, Mae Charim, Wiang Sa |
| Physical characteristics | |
| Source | Doi Phi Pan Nam |
| • location | Luang Prabang Range, Bo Kluea District, Nan Province, Thailand |
| • coordinates | 19°09′45″N 101°13′45″E / 19.16250°N 101.22917°E |
| • elevation | 1,600 m (5,200 ft) |
| Mouth | Nan River |
• location | Khueng, Wiang Sa District, Nan Province |
• coordinates | 18°33′40″N 100°45′49″E / 18.56111°N 100.76361°E |
• elevation | 182 m (597 ft) |
Lam Nam Wa is a popular watercourse for white water rafting.[1]