Siligir
| Siligir Силигир | |
|---|---|
| Olenyok basin with the Siligir in the lower part. | |
| Mouth location in Yakutia, Russia | |
| Location | |
| Country | Russia | 
| Physical characteristics | |
| Source | |
| • location | Central Siberian Plateau | 
| • coordinates | 67°06′44″N 113°05′44″E / 67.11222°N 113.09556°E | 
| • elevation | 218 m (715 ft) | 
| Mouth | Olenyok | 
|  • coordinates | 68°21′20″N 114°56′16″E / 68.35556°N 114.93778°E | 
|  • elevation | 87 m (285 ft) | 
| Length | 220 km (140 mi) (344 km (214 mi)) | 
| Basin size | 13,400 km2 (5,200 sq mi) | 
| Discharge | |
| • average | 70 m3/s (2,500 cu ft/s) | 
| Basin features | |
| Progression | Olenyok→Laptev Sea | 
The Siligir (Russian: Силигир; Yakut: Силигир) is a river in Yakutia (Sakha Republic), Russia. It is the largest right tributary of the Olenyok with a length of 220 kilometres (140 mi) —344 kilometres (214 mi) long counting the Orto-Siligir stretch of its upper course. Its drainage basin area is 13,400 square kilometres (5,200 sq mi).
The river flows just north of the Arctic Circle across a lonely, desolate area of Olenyoksky District devoid of settlements. There are very large bitumen deposits along the Siligir basin.