Ugashik-Peulik

Mountain Volcanic complex on Alaska Peninsula

A volcanic complex in Alaska’s Aleutian arc; Ugashik‑Peulik is of interest to volcanologists, pilots and teams conducting remote ecological surveys.

Main image
Main image

Ugashik-Peulik is a volcanic complex on the Alaska Peninsula, forming part of the Aleutian volcanic arc. The feature comprises multiple volcanic cones and related caldera structures.

The landscape is volcanic and remote, with rugged terrain and limited human infrastructure; it is mainly of interest to geologists, volcanologists and specialist visitors. There are named cones and edifices within the complex including Peulik and features associated with Ugashik.

The complex lies on the southwestern Alaska Peninsula and is accessible only by air or by sea from nearby coastal communities.

  • Volcanic arc location: Part of the Aleutian volcanic arc on the Alaska Peninsula and primarily of geological interest rather than a visitor destination. Access is by air or sea and the area is remote.

What to See #

  • Peulik volcano: Peulik is a stratovolcanic cone that forms one of the higher summits in the complex and is notable on regional topographic maps.
  • Ugashik caldera/complex: Ugashik refers to the broader caldera or volcanic complex portion, which together with nearby cones forms the Ugashik-Peulik volcanic feature on the Alaska Peninsula.
Ugashik-Peulik
Ugashik‑Peulik volcanic complex, Alaska (Kodiak/Aleutian region)
57.7500, -156.3667
Open access (no visitor facilities)
No formal admission (natural site)

How to Get to Ugashik-Peulik #

Access requires air transport (floatplane or small aircraft) from regional hubs in Alaska and coordination with experienced local operators; no established visitor facilities or roads lead to the site.

Tips for Visiting Ugashik-Peulik #

  • If attempting a climb or landing, coordinate with local experienced operators and check weather and volcanic advisories.
  • Remote location-ensure satellite or emergency communication and travel with an experienced, licensed pilot or guide.
  • Expect rapidly changing weather and plan conservatively for bushcraft and cold conditions.

Best Time to Visit Ugashik-Peulik #

Best attempted in the short Alaskan summer window when weather and daylight are least hostile.

Summer
Jun-Aug · 5-15°C (41-59°F)
Least snow and most accessible; long daylight hours for reconnaissance.
Late Spring/Early Fall
May; Sep · -2-8°C (28-46°F)
Possible access windows but more unpredictable weather and residual snow.

Weather & Climate near Ugashik-Peulik #

Climate

Ugashik-Peulik's climate is classified as Tundra - Tundra climate with cold summers (peaking in August) and freezing winters (coldest in March). Temperatures range from -9°C to 10°C. Moderate rainfall (818 mm/year).

Temperature & Rainfall
Temperature Range
10°
Warmest Month
-9°
Coldest Month
Monthly Conditions

January

January is freezing with highs of -3°C and lows of -8°C. Moderate rainfall (53 mm).

Comfort

-6°
Feels Like Freezing
-6°C
Temperature
-8° -3°

Weather

53 mm
Rainfall
5.5 m/s
Wind
Light Breeze

February

February is freezing with highs of -3°C and lows of -8°C. Moderate rainfall (46 mm).

Comfort

-6°
Feels Like Freezing
-6°C
Temperature
-8° -3°

Weather

46 mm
Rainfall
5.7 m/s
Wind
Light Breeze

March

March is the coldest month with highs of -5°C and lows of -9°C. Moderate rainfall (52 mm).

Comfort

-7°
Feels Like Freezing
-7°C
Temperature
-9° -5°

Weather

52 mm
Rainfall
5.0 m/s
Wind
Light Breeze

April

April is freezing with highs of -4°C and lows of -8°C. Moderate rainfall (50 mm).

Comfort

-6°
Feels Like Freezing
-6°C
Temperature
-8° -4°

Weather

50 mm
Rainfall
4.9 m/s
Wind
Light Breeze

May

May is freezing with highs of 1°C and lows of -3°C. Moderate rainfall (53 mm).

Comfort

-1°
Feels Like Freezing
-1°C
Temperature
-3°

Weather

53 mm
Rainfall
4.4 m/s
Wind
Light Breeze

June

June is cold with highs of 7°C and lows of 1°C. Moderate rainfall (70 mm).

Comfort

Feels Like Cold
C
Temperature

Weather

70 mm
Rainfall
4.4 m/s
Wind
Light Breeze

July

July is cold with highs of 10°C and lows of 4°C. Moderate rainfall (78 mm).

Comfort

Feels Like Cold
C
Temperature
10°

Weather

78 mm
Rainfall
4.2 m/s
Wind
Light Breeze

August

August is cold with highs of 10°C and lows of 5°C. Regular rainfall (97 mm).

Comfort

Feels Like Cold
C
Temperature
10°

Weather

97 mm
Rainfall
4.6 m/s
Wind
Light Breeze

September

September is cold with highs of 6°C and lows of 2°C. The wettest month with 100 mm of rain.

Comfort

Feels Like Cold
C
Temperature

Weather

100 mm
Rainfall
5.1 m/s
Wind
Light Breeze

October

October is freezing with highs of 1°C and lows of -4°C. Regular rainfall (89 mm).

Comfort

-2°
Feels Like Freezing
-2°C
Temperature
-4°

Weather

89 mm
Rainfall
5.0 m/s
Wind
Light Breeze

November

November is freezing with highs of -1°C and lows of -7°C. Moderate rainfall (67 mm).

Comfort

-4°
Feels Like Freezing
-4°C
Temperature
-7° -1°

Weather

67 mm
Rainfall
5.3 m/s
Wind
Light Breeze

December

December is freezing with highs of -1°C and lows of -8°C. Moderate rainfall (63 mm).

Comfort

-5°
Feels Like Freezing
-5°C
Temperature
-8° -1°

Weather

63 mm
Rainfall
5.8 m/s
Wind
Light Breeze

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