Lake Bolshoye Morskoye
| Bolshoye Morskoye | |
|---|---|
| Большое Морское озеро (Майнычин Анкаватын) | |
Bolshoye Morskoye lake area ONC map section | |
Location in the Sakha Republic, Russian Far East | |
| Location | Kolyma Lowland |
| Coordinates | 70°04′N 158°44′E / 70.067°N 158.733°E |
| Primary outflows | Ankavaam |
| Catchment area | 382 square kilometres (147 sq mi) |
| Basin countries | Russia |
| Max. length | 17.5 km (10.9 mi) |
| Max. width | 15 km (9.3 mi) |
| Surface area | 205 square kilometres (79 sq mi) |
| Frozen | September to June |
| Islands | None |
Bolshoye Morskoye or Mainychin Ankavatyn (Russian: Большое Морское озеро; Chukot: Майнычин-Анкаватын, Maynıçın-Ankavatın) is a freshwater lake in the Sakha Republic (Yakutia), Russia.
Lying in the tundra of northeastern Yakutia, it is the fourth largest lake in the republic. The nearest inhabited place is Pokhodsk, Lower Kolyma District, located about 130 km (81 mi) to the southeast in a straight line. A 38,200 ha (94,000 acres) sector of the lake and its surroundings is a protected area.