Lake Elgygytgyn

Elgygytgyn Lake
View of the lake
Elgygytgyn Lake Location in Chukotka, Russia
Location	Chukchi Peninsula, northeast Siberia
Coordinates	67°30′N 172°00′E / 67.500°N 172.000°E / 67.500; 172.000
Type	Impact crater lake, oligotrophic
Primary outflows	Enmyvaam
Catchment area	293 km2 (113 sq mi)
Basin countries	Russia
Max. length	12 km (7.5 mi)
Max. width	12 km (7.5 mi)
Surface area	110 km2 (42 sq mi)

Lake Elgygytgyn, also transcripted El'gygytgyn, (Russian and Chukchi: Эльгыгытгын) is a crater lake in Anadyrsky District, Chukotka Autonomous Okrug in northeast Siberia, about 150 km (93 mi) southeast of Chaunskaya Bay.

The word "Elgygytgyn" means "white lake" in the Chukchi language.

The lake is of particular interest to scientists because it has never been covered by glaciers. This has allowed the uninterrupted build-up of 400 m (1,300 ft) of sediment at the bottom of the lake, recording information on prehistoric climate change.