Skip to content

Mount Katmai

Mount Katmai rises to 2,047 m in Alaska. Mount Denison stands 2,318 m to the east-northeast, 21 miles off. The nearest named place is Mount Katmai Caldera, a cliff 1.4 miles away. 27 named places lie within 25 miles, 24 of them named summits.

The story

Mount Katmai (Russian: Катмай) is a large dormant stratovolcano (composite volcano) on the Alaska Peninsula in southern Alaska, located within Katmai National Park and Preserve. It is about 6.3 miles (10 km) in diameter with a central lake-filled caldera about two by three miles (3.2 by 4.8 km) in size, formed during the Novarupta eruption of 1912. The caldera rim reaches a maximum elevation of 6,715 feet (2,047 m). In 1975 the surface of the crater lake was at an elevation of about 4,055 feet (1,236 m), and the estimated elevation of the caldera floor is about 3,260 ft (995 m). The mountain is located in Kodiak Island Borough, very close to its border with Lake and Peninsula Borough. The volcano has caused ten known fatalities due to gas exposure. Since the 1912 eruption, the Alaska Volcano Observatory routinely issues advisories for ash. Strong winds during the summer when snow cover is sparse can lift ash from the 1912 eruption high into the air (20,000 feet plus in some cases). This can cause a serious hazard for any aircraft that might fly through the ash plume. No volcanic eruption is associated with this phenomenon.

From Wikipedia, CC BY-SA 4.0.

Wikidata Q1053435, referenced by the OpenStreetMap record.

What the record says

Elevation
2047 m

How to reach it

Coordinates58.27889, -154.95333

27 named places within 25 miles

Peaks: 24
Waterfalls: 2
Cliffs: 1
  • Mount Katmai Caldera: 1.4 mi

Other summits around it

The highest named summits within 25 miles of Mount Katmai. Elevation from each summit’s own record; bearing measured between the two coordinates.

SummitBearingElevationDistance
Mount DenisonENE 62°2,318 m20.6 mi
Mount GriggsNW 315°2,317 m7.6 mi
Mount StellerENE 63°2,272 m22.9 mi
Mount MageikWSW 242°2,165 m12.4 mi
Snowy MountainENE 69°2,162 m10.4 mi
Mount KukakENE 61°2,043 m24.7 mi
Trident VolcanoWSW 240°1,864 m6.2 mi
Mount MartinWSW 243°1,863 m16.5 mi

When to go

Light through the year

DateSunriseGolden hourSunset
March equinox08:2219:4220:34
June solstice05:1422:1823:30
September equinox08:0619:2920:21
December solstice10:0714:5216:30

Local time (America/Anchorage).

Inside the official boundary of Katmai National Park. Quietest months by visitation: Feb and Jan; busiest: Jul.

NPS visitation statistics, monthly averages 2021–2025 (2020 excluded).

Where this comes from

Location and category confirmed against OpenStreetMap.

OpenStreetMapWikipediaWikidata

OpenStreetMap element node/5940338949

More peaks in Alaska

Drive to it

Byway plans a real route around stops like this one.

Private beta · Free to join

Take the scenic way to Mount Katmai.

Byway plans around your taste, verified places, real weather and opening hours — then opens every leg in Google Maps with one tap.

Private beta · Free to join · No card · Invite when a spot opens