Roing is defined by the powerful rivers flowing down from the Himalayas.
* **Dibang River**: A major tributary of the Brahmaputra River, shaping the geography and agriculture of the district. * **Deopani River (Eze River)**: Flows directly past the town and is known for its scenic rocky banks and the famous Deopani Bridge. * **Sally Lake and Mehao Lake**: The primary standing water bodies in the immediate region, integral to local ecology and tourism.

