is a true "national treasure." i location with roll in pre serving our nation's park. grant signs the yellowstone national protection law in 1872, and the park's attendance has grown exponentially in 2020, 5 million visitors entered the gates of the park, making it one of the most popular adventures. this year we're lucky enough to see it in all of its glory. but first important to see how we got here, it began at world's largest outdoor rodeo. ♪ ♪ here in america, rodeos have been around since 1800s. and ever since then, they have been emblematic of hard