| Sededema | |
|---|---|
| Basin features | |
| Basin size | 18,500 km2 (7,100 sq mi) |
| Physical characteristics | |
| Length | 567 km (352 mi) |
The Sededema (Russian: Седедема) is a river in Sakha Republic, Russia. It is a left tributary of the Kolyma River.
Coordinates: 67°05′38″N 153°01′40″E / 67.0938°N 153.0278°E