National Parks Journal
sun setting on sand dunes

Photo: NPS Photo · Public domain

Kobuk Valley National Park

Caribou, sand dunes, the Kobuk River, Onion Portage - just some of the facets of Kobuk Valley National Park. Thousands of caribou migrate through, their tracks crisscrossing sculpted dunes. The Kobuk River is an ancient and current corridor for people and wildlife. For 9000 years, people came to Onion Portage to harvest caribou as they swam the river. Even today, that rich tradition continues.

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Entrance Fees

No entrance fee. Other fees may apply for tours, camping, or transportation.

Getting There

Roads and entrances can close temporarily. Check current conditions on nps.gov (opens in a new tab) before you go.

Entrances & departure points

Airports

  • OTZ

    Ralph Wien Memorial Airport · Kotzebue, AK

    ClosestSmall airport

    Alaska Airlines flights from Anchorage.

  • ANC

    Ted Stevens Anchorage International Airport · Anchorage, AK

    Major airport

No roads reach the park: authorized air taxis fly in from Kotzebue (or Bettles), and small scheduled planes serve nearby villages such as Kiana, Ambler, Kobuk and Shungnak.

Towns to stay in

Activities

BoatingCampingBackcountry CampingFishingFreshwater FishingFlyingFixed Wing FlyingHands-OnArts and CraftsHikingBackcountry HikingPaddling

Top Hikes

Great Kobuk Sand Dunesmoderate

out & back

Hike from the Kobuk River to the largest active sand dunes in the Arctic, an Ice Age relic covering 25 square miles.

Starts at: Kobuk River (fly-in or boat access)

Onion Portage Bluffmoderate

out & back

Climb the bluff for views of the Jade Mountains and caribou migration around Labor Day.

Starts at: Onion Portage

Baird Mountainsstrenuous

out & back

Climb into the alpine peaks where hiking is easier on drier ground above the spongy tundra of the valley floor.

Starts at: Kobuk River (fly-in access)

Upcoming Events

No upcoming events scheduled for Kobuk Valley National Park. Events are updated daily — check back soon or visit nps.gov for the latest.

Best Time to Visit Kobuk Valley

Best time to visit: July–September

The best time to visit Kobuk Valley National Park is July–September. Snow-free, mild weather allows fly-in access to the Great Kobuk Sand Dunes; late August–September brings the caribou migration.

In those months, average highs are 49–68°F at Great Kobuk Sand Dunes. Fewer than 10,000 people visit even in the busiest month, so crowds are rarely a concern.

Jan

-1° / -15°F

1.12" rain

Moderate

Feb

6° / -9°F

0.95" rain

Fewer visitors

Mar

14° / -7°F

0.63" rain

Moderate

Apr

31° / 7°F

0.5" rain

Moderate

May

51° / 30°F

0.61" rain

Moderate

Jun

66° / 44°F

1.12" rain

Most visitors

Jul

68° / 49°F

2.45" rain

Most visitors

Aug

61° / 43°F

3.34" rain

Most visitors

Sep

49° / 33°F

1.73" rain

Most visitors

Oct

Now

29° / 16°F

1.59" rain

Most visitors

Nov

9° / -3°F

0.9" rain

Most visitors

Dec

3° / -10°F

1.32" rain

Most visitors

Monthly averages at Great Kobuk Sand Dunes (240 ft). Climate normals (1981–2010): PRISM Group, Oregon State University.

Weather & Climate

Snow, rain, and freezing temperatures can occur any time of the year. Always travel with good quality rain gear and warm layers. Be especially careful to stay dry. Hypothermia can set in on a windy, wet day, even when it doesn't feel that cold.

Nearby Parks

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