Brief descriptions of these 10 areas follow. Aniakchak last erupted in 1931. Surprise Lake's waters cascade through the crater wall to form Aniakchak Wild River. Access Scheduled, then chartered airplane or floatplane. The preserve, on northwest Alaska's Seward Peninsula, is a remnant of the land bridge that connected Asia and North America some 13,000 years ago.
Archeological resources abound, and large populations of migratory birds nest here.
Access Scheduled, then chartered aircraft. Access Scheduled aircraft, then chartered aircraft and boats. Includes part of the Central Brooks Range, the northernmost extension of the Rocky Mountains. Alatna, John, Kobuk, Tinayguk, Noatak, and North Fork of the Koyukuk. Access Scheduled, then chartered aircraft.