TRAILGRAPH

underwater photo of salmon swimming in river
Wild River

Alagnak Wild River

Alaska

Tonight

🌗 46% moon

Last quarter

Crowds

low

Open today

Open

Entrance

Free entry

The headwaters of Alagnak Wild River lie within the rugged Aleutian Range of neighboring Katmai National Park and Preserve. Meandering west towards Bristol Bay and the Bering Sea, the Alagnak traverses the beautiful Alaska Peninsula, providing an unparalleled opportunity to experience the unique wilderness, wildlife, and cultural heritage of southwest Alaska.

Activities

Topics

No entrance fee.

Hours & seasons

Alagnak Wild River is never closed, but access can be difficult during the winter.

Generally open:

winterspringsummerfall

Hours are reported by the park — verify before you go.

Conditions

Quietest months (fewer crowds): Jan, Feb, Mar, Apr

Typical crowds: low

Weather now: ☁️ Overcast, 64°F

🌦️ 64°/49°

🌦️ 61°/52°

🌦️ 59°/50°

Typical monthly recreation visits · NPS avg 2023–2025 orange months are the quietest by crowds.

Quietest months

Relative crowds by month — lighter is quieter; ringed months are the calmest by crowds.

Jan

0%

Feb

0%

Mar

0%

Apr

0%

May

0%

Jun

13%

Jul

100%

Aug

79%

Sep

14%

Oct

0%

Nov

0%

Dec

0%

% of the busiest month's visits.

Log a sky reading

Measured the sky with an SQM meter or app? Add your reading (16 = city glow … 22 = pristine). Opt in under “Travelers like you” to share it on the community leaderboard.

Things to do

Fish the Alagnak River

Raft or Kayak the Alagnak River · 67 mi

Visitor centers

King Salmon Visitor Center

Accessibility

Wheelchair Accessible

Reported by the park — verify before you go.

Not an official safety source — always defer to NPS.gov and rangers for life-safety decisions.

By the numbers

A visual read on Alagnak Wild River — its character, trails, sky, and weather.

Park fingerprint

How this park scores across the dimensions travelers care about.

Trail difficulty

Difficulty mix across this park's trails.

3-day forecast

Daily high and low temperatures (°F).

Passport stamps

Mark the stamps you've collected — they show in your memory and along your routes.

🎫 King Salmon Visitor Center

Audio & media

🎧

🎬

🖼

Learn more

A History of Science in Alaska's National Parks

National park units in Alaska precede the establishment of the National Park Service in 1916. The first park unit, Sitka National Monument, was conceived in 1908, and by the mid-1920s four national monuments along with Alaska’s first national park were part of the growing park system. Discover how the early 1900s and observations of a few helped to establish the National Park Service in Alaska.

Alaska Aviation Safety

In Alaska, small planes are often the best way to get around but flying has its risks. Aviation safety requires more than just a pilot’s skill–it takes all of us. Learn more about aviation to increase the safety of your next park flight.

Bumble Bees of Alaska: A Field Guide

This field guide to bumble bees will help you identify these abundant and conspicuous pollinators, which are found across most of Alaska. They are well-adapted to cold, harsh climates and live in every habitat where there are flowers offering up pollen and nectar, including forests, shrublands, tundra, wetlands, riparian areas, beaches, and gardens.

Dark Night, Safe Flight

At night, birds use the stars to find their way. But bright lights from buildings can confuse them. That's why national parks are so important - they're like bird hotels! They give birds safe places to rest and eat, especially after flying across the ocean.

Human History along the Alagnak Wild River

The combination of natural and cultural resources represents an invaluable part of our shared heritage. As remote as the Alagnak River seems to us today, it has supported human activity for thousands of years. From the time of the earliest Alaskans, the river has given much to those willing to learn its ways.

In Celebration of ANILCA

Former President, Jimmy Carter, offers a sentimental introduction to the 25th Anniversary Edition of Alaska Park Science and the Alaska National Interest Lands Conservation Act (ANILCA).

NPS Geodiversity Atlas—Alagnak Wild River, Alaska

Each park-specific page in the NPS Geodiversity Atlas provides basic information on the significant geologic features and processes occurring in the park. Links to products from Baseline Geologic and Soil Resources Inventories provide access to maps and reports.

Plan Like a Park Ranger - 10 Tips for Visiting Alaska's National Parks

Planning a visit to the National Parks of Alaska? Check out our top 10 tips and plan like a park ranger.

How Alagnak Wild River connects

This park's activities, topics, location, and on-the-ground places — one hop in the graph. Drag to explore; click an activity, topic, or related park to follow it.

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Activity

Topic

State

VisitorCenter

PassportStamp

ThingToDo

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