| Uchur | |
| Mouth: | Aldan |
| Mouth Coordinates: | 58.7925°N 130.5986°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | Russia |
| Length: | 812km (505miles) |
| Basin Size: | 113000km2 |
| Pushpin Map: | Russia Sakha Republic |
| Pushpin Map Caption: | Mouth location in Yakutia, Russia |
The Uchur (Russian: Учур; Yakut: Учур, Uçur) is a river in Khabarovsk Krai and Yakutia in Russia, a right tributary of the Aldan (Lena's basin).[1] The length of the river is 812km (505miles). The area of its drainage basin is 113000km2. The Uchur freezes up in November and breaks up in May. Its main tributaries are the Uyan, Tyrkan, Gonam, and Gynym. The Gynym, a tributary of the Uchur, marks the southern border of the Sunnagyn Range.[2] [3]