A year ago, the Yellowstone River had its biggest flood in 500 years. Now, fishing guides have to learn a whole new river. Fishing sends more than $1 billion to Montana's economy.

Still, the explosion sparked conversation on the internet about what would happen if this were a sign of the “big one,” and what would happen if the volcanic system at Yellowstone were to erupt.

Yellowstone National Park contains the world’s largest concentration of geothermal features. In fact, this is the primary reason it was set aside as a national park in 1872.

Inside Yellowstone's fiery heart: Researchers map volatile-rich cap, offering clues to future volcanic activity. ScienceDaily . Retrieved June 11, 2025 from www.sciencedaily.com / releases / 2025 ...

While officials have said the hydrothermal explosion in Yellowstone earlier this month isn’t a warning sign of impending doom, it’s hard not to wonder what a ‘supereruption’… ...