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

This year, L.Bine is joining up with the National Park Foundation,

the official non-profit partner of the National Park Service to help you find your happy place in an amazing system of more than 400 national parks

including historic and cultural sites,

monuments, preserves, lakeshores, and seashores

that dot the American landscape,

many of which you'll find just a short trip from home.

L.L. Bean is proud to be an official partner of the National Park Foundation.

Discover your perfect day in a park at find your park.com. In 1881, Jesse and Tom Bingham heard a whistling noise coming from a beach ball-sized hole in a rock formation near

Hot Springs, South Dakota.

Wind was blowing out of the hole just as it does today, with such force that it blew off Tom's hat.

As the story goes, a few days, when Jesse returned to show the phenomenon to some friends,

the wind had switched directions,

and his hat was sucked in.

The whole was the only natural entrance to a cave, a massive one.

We now understand that the movement of the wind is caused by the difference in atmospheric pressure

between the cave and the surface. The place was later dubbed the wonderful wind cave

before it became only our seventh national park of the United States.

On today's episode of America's National Parks, three eras of Wind Cave National Park.

We begin with a young man who made the wonderful Wind Cave

everything for his short life.

Here's Abigail Trebue. You're going to do. Alvin Frank McDonald was born in 1873 in Franklin County, Iowa and moved to the Black Hills of South Dakota in 1890 at the age of 17.

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