Long Valley Fire (2017): burned area, damage and fire history

Key facts

Started	July 11, 2017
Contained	July 27, 2017, after 16 days
Burned	83,581 acres 3rd largest fire of 2017 and 68th largest in California's records
Cause	Vehicle

Open map

Where it burned

County

Lassen County 20,185 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

1917 Unnamed fire 515 acres in total 504 acres shared
1936 Unnamed fire 30,586 acres in total 104 acres shared
1986 Laver Fire 813 acres in total · Cause: Equipment use 470 acres shared
1987 Plumas Nf #531 (Clark) Fire 39,921 acres in total · Cause: Miscellaneous 56 acres shared
2000 Turtle Mountain Fire 1,073 acres shared
2003 Turtle Fire 137 acres in total 123 acres shared
2006 Laver Fire 145 acres in total · Cause: Lightning 59 acres shared
2006 Sage Fire 240 acres in total · Cause: Lightning 68 acres shared

Burned again

2020 Laura 2 Fire 2,729 acres in total 365 acres shared
2025 Debbie Fire 53 acres shared

Acres are the land each fire shares with the Long Valley 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