Biscuit Basin in Yellowstone NP closed due to hydrothermal explosion

Jul 24, 2024 | 0 comments

  • On Tuesday, July 23, at about 10:19 a.m., a localized hydrothermal explosion occurred near Sapphire Pool in Biscuit Basin, located just north of Old Faithful.  
  • Biscuit Basin, including the parking lot and boardwalks, are temporarily closed for safety reasons. The Grand Loop Road remains open. 
  • No injuries were reported and the extent of damage is unknown at this time. 
  • Park staff and staff from USGS will monitor conditions and reopen the area once deemed safe. 
  • No other monitoring data show changes in the Yellowstone region. Today’s explosion does not reflect a change in the volcanic system, which remains at normal background levels of activity. 
  • This is an evolving incident, and additional details will be shared as more facts are known. 
  • Learn more about geology in Yellowstone.

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