The Quiz: What is the tallest geyser in Yellowstone?
A Grand Geyser
B Steamboat Geyser
C Old Faithful
Steamboat Geyser doesn’t erupt very often, but when it does, it sends plumes of water and steam more than 300 feet into the air, making it the tallest active geyser in Yellowstone and in the world. The catch: Steamboat erupts on average only about once a year—sometimes it goes several years without erupting at all. The tallest predictable geyser in Yellowstone is Grand Geyser, which reaches heights of 200 feet and erupts several times a day. Old Faithful is also quite a sight, sending water plumes up to 180 feet into the air.
The correct answer to this quiz is Steamboat Geyser.