Aniakchak National Monument & Preserve

National Monument & Preserve · AK · nps.gov page

A lone raft floats the Aniakchak Wild River as it flows through the "Gates"
A lone raft floats the Aniakchak Wild River as it flows through the "Gates"Photo: NPS Photo/Troy Hamon

Given its remote location and challenging weather conditions, Aniakchak is one of the most wild and least visited places in the National Park System. This landscape is a vibrant reminder of Alaska's location in the volcanically active "Ring of Fire," as it is home to an impressive six mile (10 km) wide, 2,500 ft (762 m) deep caldera formed during a massive volcanic eruption 3,500 years ago.

Larger map

Photos

Aerial shot of Aniakchak Caldera
Aerial shot of Aniakchak CalderaPhoto: NPS Photo/Roy Wood
Black Nose, Aniakchak Caldera
Black Nose, Aniakchak CalderaPhoto: NPS Photo/Roy Wood
Maar Lake, Aniakchak Caldera
Maar Lake, Aniakchak CalderaPhoto: NPS Photo/Roy Wood
The Gates of Aniakchak
The Gates of AniakchakPhoto: NPS Photo/Roy Wood

Park information and photos come from the National Park Service. This is not an official NPS site.