Alaska contains over 130 volcanoes and volcanic fields which have been active within the last two million years.

Alaska is now home to more than 40 active volcanoes, many of which have erupted violently and repeatedly in the last 200 years. These digitized color 35-mm images which represent a small fraction of thousands of photographs taken by Alaska Volcano Observatory scientists, other researchers, and private citizens.

The photographs were selected to portray Alaska’s volcanoes, to document eruptive activity, and to illustrate the range of volcanic phenomena observed in Alaska.

Volcanoes of the Wrangell Mountains and Cook Inlet Region, Alaska

Volcanoes of the Wrangell Mountains and Cook Inlet Region, Alaska

Volcanoes of the Wrangell Mountains and Cook Inlet Region, Alaska

Volcanoes of the Wrangell Mountains and Cook Inlet Region, Alaska

Volcanoes of the Wrangell Mountains and Cook Inlet Region, Alaska

Volcanoes of the Wrangell Mountains and Cook Inlet Region, Alaska

Volcanoes of the Wrangell Mountains and Cook Inlet Region, Alaska

Volcanoes of the Wrangell Mountains and Cook Inlet Region, Alaska

Volcanoes of the Wrangell Mountains and Cook Inlet Region, Alaska

Volcanoes of the Wrangell Mountains and Cook Inlet Region, Alaska

Volcanoes of the Wrangell Mountains and Cook Inlet Region, Alaska

Volcanoes of the Wrangell Mountains and Cook Inlet Region, Alaska

Volcanoes of the Wrangell Mountains and Cook Inlet Region, Alaska

Volcanoes of the Wrangell Mountains and Cook Inlet Region, Alaska

Volcanoes of the Wrangell Mountains and Cook Inlet Region, Alaska

Volcanoes of the Wrangell Mountains and Cook Inlet Region, Alaska

Volcanoes of the Wrangell Mountains and Cook Inlet Region, Alaska

Volcanoes of the Wrangell Mountains and Cook Inlet Region, Alaska

Image Credits: U.S. Geological Survey – Christina Neal, Robert McGimsey, and M.F. Diggles

Learn more about Alaska’s named volcanoes,