| Khastakh (Tuora-Yuryakh) Хастах / Хаастаах | |
|---|---|
 Khalkan Range ONC map section with the courses of the two rivers forming the Indigirka | |
  Mouth location in Yakutia, Russia | |
| Location | |
| Country | Russia |
| Physical characteristics | |
| Source | |
| • location | Khalkan Range |
| • coordinates | 61°48′53″N 144°02′28″E / 61.81472°N 144.04111°E |
| Mouth | Indigirka |
• coordinates | 63°06′41″N 144°11′07″E / 63.11139°N 144.18528°E |
• elevation | 792 metres (2,598 ft) |
| Length | 251 km (156 mi) |
| Basin size | 10,500 km2 (4,100 sq mi) |
| Basin features | |
| Progression | Indigirka → Laptev Sea |
The Khastakh or Tuora-Yuryakh (Russian: Хастах; Yakut: Хаастаах, Xaastaax) is a river in the Sakha Republic (Yakutia), Russia. It is one of the two tributaries giving origin to the Indigirka. The river has a length of 251 kilometres (156 mi) and a drainage basin area of 10,500 square kilometres (4,100 sq mi).[1] The upper stretch of its course is also known as Khalkan.[2]
The river flows south of the Arctic Circle, across desolate tundra territories of the Oymyakonsky District marked by mountainous terrain and permafrost.[3][2]