Van Dusen Fire
198639,868 acresIdaho
The Van Dusen Fire burned 39,868 acres, about 62 square miles, across 2 counties. It began on August 10, 1986.
Watch how it happenedVan Dusen Fire · 1986
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 |
|---|---|---|
| Lowsurface fire, most trees survive | 88% | 35,018 |
| Unburned to lowislands inside the perimeter, little change | 12% | 4,808 |
| Increased greennessvegetation greener after the fire than before | 0.1% | 42 |
Most of the area inside the perimeter burned at low severity or not at all.
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.
| Gem County | ID | 38,057 |
| Payette County | ID | 1,843 |
Other large fires in Idaho in 1986
- Blue Butte Fire62,430 acres
- Bissell Ck Fire40,816 acres
Monitoring Trends in Burn Severity (USGS and U.S. Forest Service). Type recorded: Wildfire.