| Kotuykan Котуйкан | |
| Pushpin Map: | Russia Krasnoyarsk Krai |
| Pushpin Map Caption: | Location in the Krasnoyarsk Krai, Russia |
| Source1 Coordinates: | 69.7889°N 109.2772°W |
| Source1 Elevation: | 677m (2,221feet) |
| Mouth Coordinates: | 70.6206°N 103.4497°W |
| Mouth Elevation: | 34m (112feet) |
| Progression: | Kotuy→ |
| Length: | 447km (278miles) |
| Basin Size: | 24300km2 |
The Kotuykan is a river in Krasnoyarsk Krai, Russia. It is a right hand tributary of the Kotuy.
The Kotuykan is 447km (278miles) long, and the area of its basin is 24300km2.[1] It freezes up in late September and breaks up in late May or early June.
The Kotuykan has its source in the highest part of the Anabar Plateau. It is a fast-flowing river that flows westwards in a deep valley, often surrounded by picturesque cliffs of marine sediments exposed by erosion that are 1.5 billion years old.[2]
The Kotuykan joins the right bank of the Kotuy as the latter flows from the south across the western side of the Anabar Plateau, 234km (145miles) from its mouth and 461km (286miles) from the mouth of the Khatanga in the Laptev Sea.[3]
Its main tributaries are the 102km (63miles) long Ilya (Илья) and the 54km (34miles) long Dyogdyo (Дёгдё).