Yiong Tsangpo (Wyl. yid’ong tshang po), aka Yigong Tsangpo or Yiong Chu, is a small river of north-west Powo, and a tributary of the Parlung Tsangpo. Its source is in the Nyenchen Tanglha mountains, and it flows into the Parlung Tsangpo close to the town of Tangme. Due to a major landslide, the Yiong Tso (‘The lake of Yiong’) was recently created. 
A green tea plantation has been established on the banks of the Yiong Tsangpo. Powo Samling is located on the banks of the Yiong Tsangpo.
- Emeric Yeshe Dorje, The History of the Düdjom Tersar, forthcoming.