The America's National Parks Podcast is sponsored by L.L.Bine.

L.Bine believes the more time you spend outside together, the better.

That's why they design products that make it easier

to take longer walks, have deeper talks, and never worry about the weather.

Discover clothing, outerwear, footwear, and gear made for every type of adventure with the outside

built right in.

Because on the inside, we are all outsiders.

Be an outsider with L.L. Bean. Every fall in one of the largest national parks in America, visitation slows to a

near halt by the end of September.

The ground is already covered with golden aspen leaves and the mountaintops are

powdered with snow called termination dust.

The skies lose up to nine minutes of sunlight every day and the northern lights dance

over the crisp landscape at night.

While so much of the park and the landscape marches on toward the winter, there's one group of individuals that eagerly await the snow.

I'm Jason Epperson, and today on America's National Parks, the sled dogs of Denali. These official Park employees, or as some call them, canine rangers, have an important role to play year-round. As the only

kennel in the national park system, the Denali park kennels already receive

welcome attention from visitors, most of them traveling during the summer, but as the buses stop

arriving with travelers in the fall, the dogs prepare for their true purpose in the park.

Each winter, they will run more than 1,500 miles as a team.

They'll haul supplies and construction equipment into the far reaches of the

wilderness or bring construction debris back to the entrance of the park.

Through blowing snow below freezing to the

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