Foothills Fire
1992228,509 acresIdaho
The Foothills Fire burned 228,509 acres, about 357 square miles, across 3 counties. It began on August 19, 1992.
Watch how it happenedFoothills Fire · 1992
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 |
|---|---|---|
| Highmost vegetation consumed, soils altered | 8.2% | 18,710 |
| Moderatemixed: many trees killed, some survive | 11% | 25,841 |
| Lowsurface fire, most trees survive | 50% | 114,527 |
| Unburned to lowislands inside the perimeter, little change | 28% | 64,635 |
| Increased greennessvegetation greener after the fire than before | 2.1% | 4,788 |
8% of the area inside the perimeter burned at high severity, about 18,710 acres; 19% 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.
| Elmore County | ID | 224,035 |
| Ada County | ID | 3,767 |
| Boise County | ID | 828 |
Other large fires in Idaho in 1992
- Black Ridge Fire147,957 acres
- Ro Fire25,605 acres
Monitoring Trends in Burn Severity (USGS and U.S. Forest Service). Type recorded: Wildfire.