3 total votes
Mount Okmok

Mount Okmok

Mount Okmok is the highest point on the rim of Okmok Caldera on the northeastern part of Umnak Island in the eastern Aleutian Islands of Alaska. This 5.8 mile wide circular caldera truncates the top of a large shield volcano. A crater lake once filled much of the caldera, but the lake ultimately drained through a notch eroded in the northeast rim. The prehistoric lake attained a maximum depth of about 150 m and the upper surface reached an elevation of about 475 m, at which point it overtopped the low point of the caldera rim. Small, shallow remnants of the lake remained north of Cone D at an altitude of about 1075 feet: a small shallow lake located between the caldera rim and Cone D; ... more on Wikipedia

Mount Okmok is ranked on...

Volcanoes in the United States 76.7k VIEWS There are more volcanoes in America and Canada than most people realize. If you count all types: dormant, active, inact...