Lake and Peninsula County, Alaska
Aniakchak is an extant volcano. The caldera formed during a major eruption in 1645 B.C. The most recent eruption was in 1931. Surprise Lake within the caldera is the source of the Aniakchak River, a National Wild River.
According to the U.S. National Park Service, this is where the first attempts at contact between Europeans and Alaskan natives were made by naturalist Georg W. Steller, surgeon aboard Vitus Bering's St. Peter.
Cape Krusenstern National Monument stretches 70 miles along the Chukchi Sea shoreline. It is made up mainly of a coastal plain, containing large lagoons and rolling hills of limestone. Beach ridges provide evidence of 5000 years of human activity.
Only about 2000 feet (600 m) above sea level, Mount Adagdak consists of a small stratovolcano capping an older shield volcano. The date of its last known eruption is unknown, but a basaltic lava dome was constructed on the southeast side.
Juneau, Alaska, 99801
Originally called the Federal and Territorial Building, the building became the State Capitol when Alaska joined the Union in 1959. Attempts have been made to replace the building with a new Capitol, but a design could not be agreed upon.
This remote place is perhaps the least visited unit of the National Park System. The national monument is 137,176 federal acres (555 kmē) and the preserve is 465,603 acres (1,884 kmē) of which 439,863 are federal.
Fisher caldera is 11 km wide by 18 km long. It is one of at least three volcanoes on Unimak Island that have been active in historical time, with the most recent activity recorded in August of 1830.