Motorchuna
| Motorchuna Моторчуна | |
|---|---|
| Course of the Motorchuna map section | |
| Mouth location in Yakutia, Russia | |
| Location | |
| Country | Russia | 
| Physical characteristics | |
| Source | |
| • location | Central Siberian Plateau | 
| • coordinates | 68°18′41″N 118°31′45″E / 68.31139°N 118.52917°E | 
| • elevation | 253 m (830 ft) | 
| Mouth | Lena | 
|  • location | Zhigansky District | 
|  • coordinates | 68°01′02″N 123°07′08″E / 68.01722°N 123.11889°E | 
|  • elevation | 22 m (72 ft) | 
| Length | 423 km (263 mi) | 
| Basin size | 9,250 km2 (3,570 sq mi) | 
| Basin features | |
| Progression | Lena→ Laptev Sea | 
The Motorchuna (Russian: Моторчуна) is a river in Yakutia (Sakha Republic), Russia. It is a left tributary of the Lena with a length of 423 kilometres (263 mi). Its drainage basin area is 9,250 square kilometres (3,570 sq mi). Since its river basin is uninhabited, the Motorchuna is one of the most untouched rivers in Yakutia; the waters are clean and there is abundant wildlife.
The name of the river comes from the Even "mo/tor/chu" (мо/тор/чу), meaning "tree/pass/river".
In the International scale of river difficulty the Motorchuna is a Class II destination for rafting and kayaking.