Hidden Valley Lake

Summary

• Fire hazard severity zones

  Share of the land in each CAL FIRE hazard class

  Map
  1. Very High 4,745 acres · State Responsibility Area 74%
  2. High 823 acres · State Responsibility Area 13%
  3. Moderate 808 acres · State Responsibility Area 13%
  4. Not mapped by CAL FIRE 1 acre · Mostly federal land <1%

  6,377 acres of land in all, 6,376 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. 2015 Valley Fire 76,085 acres in total 3,603 acres here
  2. 1951 Mary Bowcher Fire 3,447 acres in total 1,361 acres here
  3. 1985 Hidden Valley Fire 1,032 acres in total 416 acres here
  4. 1976 Yankee Valley Fire 1,588 acres in total 259 acres here
  5. 2000 Hidden Fire 3,960 acres in total · Cause: Equipment use 244 acres here
  6. 1961 Roadside #13 Fire 154 acres in total 137 acres here
  7. 1947 Unnamed fire 8,462 acres in total 41 acres here

  The most recent was the 2015 Valley Fire, which burned 3,603 acres here. In all, 4,260 acres of Hidden Valley Lake 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