Yellowstone national park is the home of a volcano!- An active volcano
- Approximately 1,000-3,000 earthquakes annually
- Approximately 10,000 thermal features
- More than 300 geysers
- One of the world's largest calderas, measuring 45 by 30 miles (72 by 48 km)
- Thousands of petrified trees in northern Yellowstone
- Approximately 290 waterfalls, 15 ft. or higher, flowing year-round
- Tallest waterfall: Lower Falls of the Yellowstone River at 308 ft. (94 m)