USGS: Yellowstone Flood Was Once-In-500-Years Event
![](https://www.nationalparkstraveler.org/sites/default/files/styles/npt_square2/public/article-teaser-images/yell-north_entrance_road_damage_june_2022nps_1025.jpg?itok=iRUdjT5I)
Flooding that ripped through Yellowstone National Park this week could be considered a "once in 500 years" event, according to the U.S. Geological Survey.
- By NPT Staff - June 17th, 2022 3:47pm