Alta Sierra

Summary

• Fire hazard severity zones

  Share of the land in each CAL FIRE hazard class

  Map
  1. Very High 4,212 acres · State Responsibility Area 79%
  2. High 972 acres · State Responsibility Area 18%
  3. Moderate 114 acres · State Responsibility Area 2%
  4. Not mapped by CAL FIRE 40 acres · Mostly federal land 1%

  5,338 acres of land in all, 5,299 of it in the State 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. 1960 Newnan Lightning #9 Fire 739 acres in total 706 acres here
  2. 2018 Oak Fire 9 acres here

  The most recent was the 2018 Oak Fire, which burned 9 acres here. In all, 715 acres of Alta Sierra 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