| Koolen | |
|---|---|
| |
&sq=Qlik&lang=&file=File:Koolen_2022-07-13-23_59_Sentinel-2_L2A.jpg) Koolen Sentinel-2 image | |
&sq=Qlik&lang=&file=File:Russia_Chukotka_Autonomous_Okrug_relief_location_map.png)  Koolen Location in Chukotka Autonomous Okrug, Russia | |
| Location | Chukotsky District, Chukotka Autonomous Okrug |
| Coordinates | 65°56′N 171°6′W / 65.933°N 171.100°W |
| Primary inflows | Gytgykoymavaam, Endoyguem |
| Primary outflows | Koolenveyem |
| Basin countries | Russia |
| Max. length | 15 km (9.3 mi) |
| Max. width | 1.5 km (0.93 mi) |
| Surface area | 264 km2 (102 sq mi) |
| Max. depth | 100 m (330 ft) |
| Surface elevation | 42 m (138 ft) |
| Frozen | From October to June |
Koolen (Eskimo–Aleut: Koglu) is a lake of Chukotsky District, Chukotka Autonomous Okrug, Russia. Its name originated in the Chukchi word Koolёn, a fault or deep chasm.[1]
- ^ Boris Zhulanov. My Stern, Gentle Koolen - Ural pathfinder, 1990, number 10, pp 56-59