Sprr Mainline #20 Fire
Wildfire in Lassen and Modoc counties, August 1957
Search for an addressPrinted October 28, 2026 from www.firezones.info/fire/1598/sprr-mainline-20-fire-1957
Key facts
| Started | August 18, 1957 |
|---|---|
| Contained | Not recorded |
| Burned | 11,668 acres 4th largest fire of 1957 |
| Cause | Not recorded |
Where it burned
Counties
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 again
Acres are the land each fire shares with the Sprr Mainline #20 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
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