Mosquito Fire

Wildfire in Del Norte, Siskiyou and Humboldt counties, August 2023

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Printed October 28, 2026 from www.firezones.info/fire/8410/mosquito-fire-2023

Key facts

Started August 15, 2023
Contained October 25, 2023, after 71 days
Burned 34,188 acres
3rd largest fire of 2023
Cause Lightning
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Where it burned

Counties

  1. Del Norte County 20,422 acres
  2. Siskiyou County 10,925 acres
  3. Humboldt County 2,784 acres

Acres are the land the fire burned in each county and community, and places where it burned less than an acre are not listed. Communities are cities, towns and the unincorporated places the Census Bureau names, so land outside any of them is counted only in its county.

The same land, other fires

Burned before

  1. 1917 Unnamed fire 3,869 acres in total 251 acres shared
  2. 1917 Serpentine Camp Fire 997 acres in total · Cause: Debris burning 56 acres shared
  3. 1918 Unnamed fire 5,470 acres in total 4,697 acres shared
  4. 1924 Bluff Creek #2 Fire 1,228 acres in total · Cause: Debris burning 773 acres shared
  5. 1927 Bluff Creek Fire 5,656 acres in total · Cause: Lightning 3,708 acres shared
  6. 1929 Blue Creek #4 Fire 3,769 acres in total · Cause: Debris burning 249 acres shared
  7. 1951 Notice Creek Fire Cause: Lightning 316 acres shared
  8. 1951 Flint Valley Fire 326 acres in total · Cause: Lightning 293 acres shared
  9. 1978 Bear Fire Cause: Debris burning 182 acres shared
  10. 1979 Coffee Cup Fire Cause: Debris burning 48 acres shared
  11. 1994 Jack #1 Fire 28,207 acres in total · Cause: Lightning 256 acres shared
  12. 1994 Kevin Fire 206 acres in total · Cause: Lightning 191 acres shared
  13. 1994 Unnamed fire 62 acres in total · Cause: Lightning 60 acres shared
  14. 1994 Unnamed fire 47 acres in total · Cause: Lightning 46 acres shared
  15. 1994 Unnamed fire 43 acres in total · Cause: Lightning 42 acres shared
  16. 1998 Unnamed fire 6,284 acres in total 5,270 acres shared
  17. 1998 Unnamed fire 442 acres in total 269 acres shared
  18. 1998 Unnamed fire 389 acres in total 244 acres shared
  19. 2008 Mill Fire 65,882 acres in total · Cause: Lightning 18,669 acres shared

Burned again

  1. 2025 Dillon Fire 11,929 acres in total · Cause: Lightning 203 acres shared

And 17 more fires that burned less of the same land. Acres are the land each fire shares with the Mosquito Fire, and fires that shared less than an acre are not counted. Some older or smaller fires may be missing, and a fire perimeter can include unburned patches. How to read fire history

Sources

Fire history
CAL FIRE Fire and Resource Assessment Program
Published 28 July 2026
Building damage
CAL FIRE Damage Inspection
Updated 19 October 2026

This site is independent and not affiliated with CAL FIRE or the CPUC, so for an official determination, check with the agency or your city or county. How we read the data