For the more information about the air resources of the National Park Service, please visit http://www.nature.nps.gov/air/.


Mount Veniaminof

Mount Veniaminof
Mount Veniaminof. Photo by Tim Plucinski courtesy the Alaska Volcano Observatory / USGS.

An active volcano of great mass, Mount Veniaminof contains a cupped ice field of 25 square miles, the most extensive crater-glacier in the nation. The caldera originated when the former summit collapsed. It is the only known glacier on the continent with an active volcanic vent in its center. Located within Alaska Peninsula National Wildlife Refuge, Veniaminof is usually shrouded in fog and clouds, and local residents indicate that the entire volcano is visible only one or two days a year.

Location: Alaska, AK

Year designated: 1967

Acres: 659,149

Ownership: Federal

For additional information see:


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Please remember, National Natural Landmarks (NNLs) are not national parks. NNL status does not indicate public ownership, and many sites are not open for visitation.

Last Updated: June 28, 2012