Fire Update, August 11, 2021

August 11, 2021 Posted by: Yosemite Fire Information

As of August 11, 2021, Yosemite has had 41 fires started by lightning and 11 human-caused fires for the 2021 calendar year. Fire management has taken on a mix of strategies to suppress, monitor, or contain these fires throughout Yosemite's fire-adapted ecosystems. All active fires are being monitored and have a low probability of spread with many natural barriers except for the Tiltill Fire which is being fully suppressed.

Fire management actions have adhered to Minimum Impact Suppression Techniques (MIST). This minimizes impacts in the wilderness while allowing the healthy ecological effects of natural fire. The overall strategy for managing all wildland fires is to provide for the safety of employees and the public and protect and enhance natural and cultural resources.

Smoke may be present in parts of Yosemite National Park due to other regional fires in California. Please see below for links to air quality and weather in Yosemite.


  • Location: North of Hetch Hetchy, Tiltill Valley.                                       
  • Discovery Date: July 31. 2021                              
  • Size: 1,610 acres
  • Containment: 45%                                                
  • Strategy: Full Suppression
  • Cause: Lightning                                                                    


County Line

  • Location: Near Yosemite Creek Campground Road. 8361 elevation.
  • Discovery Date: June 28th, 2021              
  • Size: 224 acres                                                          
  • Containment: 100%                              
  • Strategy: Confine and Contain                  
  • Cause: Lightning


  • Location: West of Lukens Lake, North of Tioga Road. 8243 elevation.
  • Discovery Date: June 28, 2021                   
  • Size: 510 acres                                           
  • Containment: 85%                                       
  • Strategy: Confine and Contain                                 
  • Cause: Lightning

More Information

Last updated: August 11, 2021

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