Ross Fork Fire
202240,690 acresIdaho
The Ross Fork Fire burned 40,690 acres, about 64 square miles, across 3 counties. It began on August 14, 2022.
Watch how it happenedRoss Fork Fire · 2022
How it happened
Watch it burn in the order satellites saw it, coloured by how severely each place burned.
How severely it burned
Burn severity inside the final perimeter, classified from Landsat images taken before and after the fire.

| Severity | Share | Acres |
|---|---|---|
| Highmost vegetation consumed, soils altered | 13% | 5,215 |
| Moderatemixed: many trees killed, some survive | 25% | 10,050 |
| Lowsurface fire, most trees survive | 48% | 19,354 |
| Unburned to lowislands inside the perimeter, little change | 15% | 5,915 |
| Increased greennessvegetation greener after the fire than before | 0.4% | 156 |
13% of the area inside the perimeter burned at high severity, about 5,215 acres; 38% burned at moderate or high 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.
| Blaine County | ID | 31,546 |
| Camas County | ID | 8,922 |
| Elmore County | ID | 220 |
Other large fires in Idaho in 2022
- Double Creek Fire170,868 acres
- Moose Fire142,291 acres
- Russell Mountain Fire26,104 acres
Monitoring Trends in Burn Severity (USGS and U.S. Forest Service). Type recorded: Wildfire.