Calling all Citizen Scientists! Yellowstone and the U.S. Geological Survey (USGS) are seeking information regarding the hydrothermal explosion event that took place in Biscuit Basin on July 23rd, 2024.

Who can help:

• People in Biscuit Basin or surrounding area who directly observed the event.
• People who have photos or videos of Black Diamond Pool, Black Opal Pool, or Wall Pool during the period of July 16-July 23.

If you are in either of these groups and would like to help, please contact the Yellowstone Geology Program: yell_geology@nps.gov

Hydrothermal explosions are common, but not often witnessed. By sharing your observations and media, you can directly contribute to important scientific research on this underappreciated geologic hazard.