Devil Mountain Lakes

The lake is considered to be the largest maar in the world;[2] it is part of the Espenberg volcanic field.

Devil Mountain Lakes is located about 100 km (62 mi) southwest of Kotzebue on the northern part of the Seward Peninsula.

The crater lake has a diameter of about 8 kilometers (5.0 mi); it is part of the Bering Land Bridge National Preserve.

It consists of two connected craters,[2] North Devil Mountain Lake with a diameter of about 5.1 km (3.2 mi), and South Devil Mountain Lake with a diameter of about 3.4 km (2.1 mi).

[4] The lake was probably shaped during volcanic eruptions about 21,000 years ago during the Pleistocene Ice Age as lava flows came through the permafrost creating violent underground explosions.