Old Faithful is one of the biggest icons of Yellowstone National Park! Truly, it is the world's most famous geyser and a bucket list destination for many. A visit to the world's first national park ...

YELLOWSTONE NATIONAL PARK, Wyo. (AP) - Steamboat geyser erupted for the fourth time in just over a year on Sunday, prompting new questions about increased activity for the world's biggest geyser.