Aniakchak National Monument and Preserve

Aniakchak National Monument and Preserve is a U.S. National Monument and National Preserve, consisting of the region around the Aniakchak volcano on the Aleutian Range of south-western Alaska. It has erupted at least 40 times over the last 10,000 years. The 601,294-acre monument is one of the least-visited places in the National Park System due to its remote location and difficult weather.

Source: Wikipedia