Yellowstone is unbeatable for anyone who loves the great outdoors -- even for those who prefer to see the great outdoors from the comfort of a car. From bison to bears to bobcats, and a whole lot of geothermal goodness, Yellowstone's got it all.
How long have people inhabited the area encompassed within Yellowstone National Park?
What year did Yellowstone become the world's first national park?
When the Yellowstone supervolcano erupted for the first time about 2.1 million years ago, how strong was the blast compared to that of Mount St. Helens in 1980?
about 600 times the amount of mass was ejected
about 1,200 times the amount of mass was ejected
about 2,400 times the amount of mass was ejected
How large is the most recently formed caldera?
about 20 by 60 miles (around 30 by 95 kilometers)
about 30 by 50 miles (around 50 by 80 kilometers)
about 40 by 70 miles (around 65 by 110 kilometer)
Yellowstone is home to what percentage of the world's hydrothermal features?