A 414 Burnt Mountain Fire
199237,481 acresAlaska
The A 414 Burnt Mountain Fire burned 37,481 acres, about 59 square miles, across Yukon-Koyukuk Census Area. It began on July 19, 1992.
Watch how it happenedA 414 Burnt Mountain 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 | 3.0% | 1,108 |
| Moderatemixed: many trees killed, some survive | 19% | 7,065 |
| Lowsurface fire, most trees survive | 45% | 16,821 |
| Unburned to lowislands inside the perimeter, little change | 33% | 12,465 |
| Increased greennessvegetation greener after the fire than before | 0.1% | 22 |
3% of the area inside the perimeter burned at high severity, about 1,108 acres; 22% 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.
| Yukon-Koyukuk Census Area | AK | 37,494 |
Monitoring Trends in Burn Severity (USGS and U.S. Forest Service). Type recorded: Wildfire.