Thermalito

Summary

• Fire hazard severity zones

  Share of the land in each CAL FIRE hazard class

  Map
  1. Moderate 6,140 acres · Local Responsibility Area 75%
  2. Non-wildland 2,086 acres · Local Responsibility Area 25%

  8,226 acres of land in all, 8,226 of it in the Local Responsibility Area. 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

  Fires CAL FIRE has recorded here

  Map
  1. 2001 Larkin Fire 627 acres here
  2. 2001 Larkin Fire Cause: Arson 257 acres here
  3. 1990 Wild Fire Cause: Equipment use 255 acres here
  4. 2000 Larkin Fire 487 acres in total · Cause: Railroad 214 acres here
  5. 2020 Nelson Fire 103 acres here
  6. 2020 Feather Fire 15 acres here
  7. 2022 Nelson Fire 33 acres in total 5 acres here

  The most recent was the 2022 Nelson Fire, which burned 5 acres here. In all, 1,383 acres of Thermalito 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