Sombrero Fire
1999128,047 acresNevada
The Sombrero Fire burned 128,047 acres, about 200 square miles, across Humboldt County. It began on August 4, 1999.
Watch how it happenedSombrero Fire · 1999
How it happened
See how severely each place burned, revealed outward from where it started.
How severely it burned
Burn severity inside the final perimeter, classified from Landsat images taken before and after the fire.
| Severity | Share | Acres |
|---|---|---|
| Moderatemixed: many trees killed, some survive | 15% | 19,119 |
| Lowsurface fire, most trees survive | 65% | 83,630 |
| Unburned to lowislands inside the perimeter, little change | 20% | 25,167 |
| Not mappedcloud, shadow or water in the satellite images | 0.1% | 118 |
No part of the fire was classed as high severity; 15% burned at moderate severity.
Monitoring Trends in Burn Severity (U.S. Geological Survey and USDA Forest Service). Classes come from the change in a Landsat burn index (dNBR) between images before and after the fire; acres are each class’s share of the fire’s mapped area.
Where it burned
Acres inside each county, measured from the satellite-mapped perimeter.
| Humboldt County | NV | 128,142 |
Other large fires in Nevada in 1999
- Dun Glenn Complex (Poker Brown)236,353 acres
- Sadler Complex183,801 acres
- New Pass Complex (New Pass-Antelope)172,104 acres
- Eureka Complex (Trail Canyon)106,164 acres
- Jungo Complex77,016 acres
- Clover Fire72,585 acres
- Frenchie Fire55,238 acres
- Rose Fire48,331 acres
Monitoring Trends in Burn Severity (USGS and U.S. Forest Service). Type recorded: Wildfire.