Monument Fire

Wildfire in Trinity County, July 2021

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Printed October 28, 2026 from www.firezones.info/fire/8257/monument-fire-2021

Key facts

Started July 31, 2021
Contained November 3, 2021, after 95 days
Burned 223,108 acres
2nd largest fire of 2021 and 16th largest in California's records
Cause Lightning
Buildings 28 destroyed, 2 damaged
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Where it burned

County

  1. Trinity County 223,108 acres

Communities

  1. Hayfork 7,042 acres
  2. Junction City 5,686 acres
  3. Burnt Ranch 303 acres
  4. Trinity Village 270 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.

Buildings damaged

  1. Destroyed Over 50% damaged 28
  2. Minor damage 10 to 25% damaged 1
  3. Affected Up to 10% damaged 1

Buildings CAL FIRE inspected after the fire, by how badly each was damaged. Inspectors record homes, businesses and outbuildings within 100 meters of the fire, and cannot always reach every one, so the counts can differ slightly from other reports.

The same land, other fires

Burned before

  1. 1931 Unnamed fire 1,925 acres shared
  2. 1940 Unnamed fire 1,331 acres in total 1,306 acres shared
  3. 1945 Unnamed fire 5,646 acres in total 4,353 acres shared
  4. 1949 Unnamed fire Cause: Miscellaneous 6,150 acres shared
  5. 1955 Unnamed fire Cause: Lightning 3,214 acres shared
  6. 1985 Treloar Complex Cause: Lightning 3,786 acres shared
  7. 1999 Onion Fire 15,961 acres in total · Cause: Lightning 3,873 acres shared
  8. 2001 Hyampom Fire Cause: Arson 1,180 acres shared
  9. 2003 Loma Fire Cause: Miscellaneous 3,710 acres shared
  10. 2006 Pigeon Fire 35,094 acres in total · Cause: Miscellaneous 24,324 acres shared
  11. 2008 Ironside Fire Cause: Lightning 12,761 acres shared
  12. 2008 Eagle Fire 32,024 acres in total · Cause: Lightning 30,641 acres shared
  13. 2008 Buckhorn Fire 29,814 acres in total · Cause: Lightning 26,891 acres shared
  14. 2008 Cedar Fire Cause: Lightning 25,146 acres shared
  15. 2008 Miners Fire 24,876 acres in total · Cause: Lightning 22,219 acres shared
  16. 2008 Ziegler Fire 2,349 acres in total · Cause: Lightning 2,184 acres shared
  17. 2012 Flat Fire 1,720 acres in total · Cause: Vehicle 1,640 acres shared
  18. 2015 Happy Fire 68,095 acres in total · Cause: Lightning 12,313 acres shared
  19. 2015 Dog Fire 3,276 acres in total · Cause: Lightning 1,936 acres shared
  20. 2017 Helena Fire 18,494 acres in total · Cause: Miscellaneous 3,501 acres shared

And 45 more fires that burned less of the same land. Acres are the land each fire shares with the Monument 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