Mount Aniakchak, Caldera and stratovolcano in Lake and Peninsula Borough, Alaska, US
Mount Aniakchak features a 10-kilometer-wide caldera containing numerous volcanic formations, including a 1,000-meter-high cinder cone and multiple lava domes.
The caldera formed through a substantial volcanic eruption around 1628 BCE, dispersing tephra deposits across vast distances reaching northern Europe.
Native Alutiiq populations inhabited the Alaskan Peninsula region for 7,000 years until the massive Aniakchak II eruption forced their displacement.
Visitors require air or boat transportation to reach this National Natural Landmark, which maintains monitoring stations for tracking volcanic activity.
The caldera contains Surprise Lake and experiences frequent weather changes, while recording fewer than 300 annual visitors due to its remote location.
Location: Lake and Peninsula Borough
Elevation above the sea: 1,341 m
GPS coordinates: 56.90583,-158.20889
Latest update: May 20, 2025 02:06
Novarupta
236.7 km
Mount Katmai
246.9 km
Brooks Falls
233.1 km
Aniakchak National Monument and Preserve
6.2 km
Mount Veniaminof
107.2 km
Fure's Cabin
256.6 km
Mount Chiginagak
78 km
Mount Griggs
245.6 km
Alaska Peninsula National Wildlife Refuge
112 km
Ukinrek Maars
145 km
Trident Volcano
237.1 km
Naknek River
217 km
Becharof National Wildlife Refuge
169.1 km
Mount Martin
220.9 km
Mount Mageik
227.4 km
Mount Dana
233.5 km
Old Savonoski Site
249 km
Brooks River Archeological District
233 km
Ugashik River
95.1 km
Elevation of Holy Cross Church
213.8 km
Brooks Camp Boat House
233.8 km
St. Nicholas Chapel
225.1 km
Brooks River Historic Ranger Station
233.8 km
St. John the Baptist Chapel
215 km
Transfiguration of Our Lord Chapel
228 km
St. Nicholas Church
37 km
Brooks Camp Visitor Center
233.7 km
Falling Mountain
237.1 kmReviews
Visited this place? Tap the stars to rate it and share your experience / photos with the community! Try now! You can cancel it anytime.
Discover hidden gems everywhere you go!
From secret cafés to breathtaking viewpoints, skip the crowded tourist spots and find places that match your style. Our app makes it easy with voice search, smart filtering, route optimization, and insider tips from travelers worldwide. Download now for the complete mobile experience.
A unique approach to discovering new places❞
— Le Figaro
All the places worth exploring❞
— France Info
A tailor-made excursion in just a few clicks❞
— 20 Minutes