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The park was designated in 1980 by the Alaska National Interest Lands Conservation Act to preserve the 100 ft (30 m) high Great Kobuk Sand Dunes [3] and the surrounding area which includes caribou migration routes. Park visitors must bring all their own gear for backcountry camping, hiking, backpacking, boating, and dog sledding.
Rolling, vegetated sand dunes were formed by the last retreat of the glaciers. These dunes are the remnant of a much larger system that once included the Great Kobuk Sand Dunes to the north. This area is a transition zone where the northernmost boreal forests give way to open Arctic tundra.
The Kobuk River is a periglacial river, fed by a remnant glacial lake (Walker Lake) and mountain snowmelt in the Brooks Range. It cuts a channel through a landscape otherwise dominated by permafrost. The Kobuk's current form and structure is a direct result of several stages of erosion and channel formation following the last glacial retreat.
Only two national parks got fewer visitors than Kobuk Valley in 2022. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ways to reach us. Sign in. Mail. 24/7 ...
Created by glaciers, the Great Kobuk, Little Kobuk, and Hunt River Sand Dunes can reach 100 feet (30 m) high and 100 °F (38 °C), and they are the largest dunes in the Arctic. Twice a year, half a million caribou migrate through the dunes and across river bluffs that expose well-preserved ice age fossils. [81] Lake Clark: Alaska
The dunes are believed to be remnants of a massive lake, Laka Alamosa, that dried up roughly 440,000 years ago, according to the park’s website.Over time, the park says wind, water and sediment ...
Great Kobuk Sand Dunes three small deserts in northwestern Alaska, part of the Kobuk Valley National Park; Yukon - Carcross Desert, smallest desert in the world; Washington – British Columbia – Idaho – Wyoming – Oregon – Nevada. Much of the Columbia Basin is desert, such as the Channeled Scablands, a desert in the Columbia Basin of ...
Great Sand Dunes: Great Sand Dunes National Park: NPS CO 32,643 51.005 13,210 132.10 ... Kobuk Valley: Kobuk Valley National Park: NPS AK 174,545 272.727 70,636