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March 1, 1872

Leia Morgan
Yellowstone became a national park in 1872, when President Ulysses S. Grant signed The Act of Dedication law.

Every 44 to 125 minutes...

Leia Morgan
Old Faithful is a geyser with an appropriate name! It will erupt every 44 to 125 minutes and will shoot out 3,700 US gallons of boiling water!

Reaching 300 ft...

Leia Morgan
Steamboat Geyser has been known to shoot out water to heights of 300 ft, making it the world's tallest currently-active geyser!