Trough Fire

Wildfire in Glenn, Colusa and Lake counties, August 2001

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Printed October 28, 2026 from www.firezones.info/fire/5672/trough-fire-2001

Key facts

Started August 8, 2001
Contained August 20, 2001, after 12 days
Burned 24,927 acres
2nd largest fire of 2001
Cause Miscellaneous
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Where it burned

Counties

  1. Glenn County 11,094 acres
  2. Colusa County 7,325 acres
  3. Lake County 6,508 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. 1949 Unnamed fire 782 acres in total 61 acres shared
  2. 1978 Unnamed fire Cause: Lightning 17 acres shared
  3. 1987 Fouts Fire 16,363 acres in total · Cause: Lightning 1,114 acres shared

Burned again

  1. 2003 West Crockett Fire 132 acres in total · Cause: Lightning 5 acres shared
  2. 2012 Mill Fire 29,526 acres in total · Cause: Miscellaneous 54 acres shared
  3. 2013 Crockett Fire Cause: Lightning 7 acres shared
  4. 2018 Ranch Fire 410,202 acres in total · Cause: Miscellaneous 19,450 acres shared
  5. 2020 Nail Fire 15 acres in total 12 acres shared
  6. 2020 August Complex 1,032,700 acres in total · Cause: Lightning 51 acres shared

Acres are the land each fire shares with the Trough 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