• Aerial view of Aniakchak Caldera taken from northern rim


    National Monument & Preserve Alaska

Things To Know Before You Come

No visitor to Aniakchak should attempt to plan and carry out a trip based solely on the information in this website. For a safe and successful Aniakchak adventure, however, all visitors must be prepared for extreme weather and the likelihood of encounters with brown bears.

With the exception of some guide services, visitor interaction with commercial services at Aniakchak ends after being dropped off by air taxi.

Then, you're on your own!

Did You Know?

Did You Know?

Ash from the May 1931 eruption of Aniakchak fell at a rate of a pound per hour at the Chignik villages, 65 miles to the south. The blast was heard 200 miles away and the ash sprinkled the ground nearly 700 miles from the source. The eruption left a caldera 250 deep and one-half mile wide.