Which sea lies between the Chukchi Sea and the Laptev Sea?

The sea between the Chukchi Sea and the Laptev Sea is the East Siberian Sea.

This marginal sea of the Arctic Ocean lies along Russia’s northeastern coast. The Laptev Sea borders it to the west, while the Chukchi Sea lies to the east; the New Siberian Islands and Wrangel Island help define its wider boundaries. Its southern shore is part of Siberia’s low-lying Arctic coast.

The East Siberian Sea is notably shallow: about 70% of its area is less than 50 metres deep, although its maximum depth reaches roughly 915 metres. Severe cold, seasonal sea ice, fog and weak currents make it one of the least studied Arctic seas.

A common mix-up is confusing it with the Laptev Sea, which is immediately west and is named for explorers Dmitry and Khariton Laptev. The East Siberian Sea is also associated with the Northern Sea Route and the port of Pevek, mainland Russia’s northernmost city.