Lassen County

Summary

• Fire hazard severity zones

  Share of the land in each CAL FIRE hazard class

  Map
  1. Very High 426,946 acres · 423,387 state, 3,559 local 14%
  2. High 541,025 acres · 527,881 state, 13,144 local 18%
  3. Moderate 125,253 acres · 99,245 state, 26,008 local 4%
  4. Non-wildland 187,255 acres · Local Responsibility Area 6%
  5. Not mapped by CAL FIRE 1,740,089 acres · Mostly federal land 58%

  3,020,568 acres of land in all, 1,050,512 in the State Responsibility Area and 229,966 in the Local. State zones are the ones the State Fire Marshal designated, in effect since April 1, 2024. Local zones are CAL FIRE's 2025 recommendation, which each city or county adopts by ordinance and can make stricter. How to read fire zones

• Fire history

  The 10 largest of 456 fires that burned here

  Map
  1. 2012 Rush Fire 315,512 acres in total · Cause: Lightning 271,668 acres here
  2. 2021 Dixie Fire 963,405 acres in total · Cause: Power lines 140,433 acres here
  3. 2020 W-5 Cold Springs Fire 84,818 acres in total · Cause: Lightning 63,695 acres here
  4. 2021 Sugar Fire 105,004 acres in total 37,217 acres here
  5. 2014 Bald Fire 39,752 acres in total · Cause: Lightning 25,315 acres here
  6. 2020 Gold Fire 22,635 acres here
  7. 2020 Sheep Fire 29,541 acres in total · Cause: Lightning 21,822 acres here
  8. 1977 Gerigcougar Fire Cause: Lightning 21,164 acres here
  9. 1987 Plumas Nf #531 (Clark) Fire 39,921 acres in total · Cause: Miscellaneous 20,376 acres here
  10. 2017 Long Valley Fire 83,581 acres in total · Cause: Vehicle 20,185 acres here

  And 446 smaller fires. The most recent was the 2025 R-13 Petes Fire, which burned 6 acres here. In all, 967,051 acres of Lassen County have burned. Acres are the land each fire burned here, and fires that crossed 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