• pond surrounded by green brush, reflecting a distant range of snow-covered mountains that are dominated by one massive mountain

    Denali

    National Park & Preserve Alaska

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  • Road Closure: Friday, September 26

    On Friday, September 26, a contractor will be working on a utility below the park road near Headquarters. Therefore, the road will be closed to all vehicle traffic at roughly Mile 3. The road will re-open on Saturday morning.

Mammals


Scientists have documented thirty nine species of mammals in Denali National Park and Preserve. Mammals here range in size from the 1,200+ pound moose to the 1.5 gram tiny shrew.

A goal for many visitors to the park is to see wildlife. On a ride along the park road visitors can see a moose browsing in a stand of willow, caribou resting on a snow patch to avoid insects, Dall sheep high on the hillsides, a wolf trotting across the tundra, or a grizzly bear feeding on ripening blueberries.

Creatures Great and Small

Many other mammals in Denali are less obvious but no less interesting and important. Sit on a talus sloe and you might hear and see a collared pika gathering winter food, a wolverine as it moves about searching for a meal, or a red fox carrying a ground squirrel back to its den.

Denali's summers are short and winters extreme. Mammals here have many adaptations that help them survive. Rodents and shrews make up more than half the species of mammals. Many keep busy in summer gathering great quantities of food to sustain them through the winter. Red squirrels store spruce cones in piles and burrows on the forest floor. The smallest mammals, the mice, voles, shrews and lemmings depend on food stockpiles while they stay active under a protective layer of winter snow. The largest rodent, the beaver, will store a brush pile at the bottom of its pond that can be accessed under water from its lodge when the pond is frozen over.

Grizzly bears, black bears, hoary marmots, and arctic ground squirrels avoid the winter by hibernating. To build up body fat reserves needed for hibernation they eat extensively in late summer.

Camouflage is an adaptation used by two of Denali's mammals. To blend in with the summer vegetation, the fur of snowshoe hare and short tailed weasel (ermine) is brown. Their fur changes to white to blend with the winter snow.

Here is a checklist of mammals found in Denali National Park and Preserve.

Did You Know?

a white, two-peaked mountain

Mount McKinley, located within Denali National Park and Preserve, is the highest mountain on the North American continent. Measured from the 2,000 foot lowlands to its snowy summit at 20,320 feet, the mountain’s vertical relief of 18,000 feet is greater than that of Mount Everest.