Granddad Fire
200629,323 acresOregon
The Granddad Fire burned 29,323 acres, about 46 square miles, across Harney County. It began on August 21, 2006.
Watch how it happenedGranddad Fire · 2006
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 | 26% | 7,587 |
| Moderatemixed: many trees killed, some survive | 42% | 12,314 |
| Lowsurface fire, most trees survive | 11% | 3,345 |
| Unburned to lowislands inside the perimeter, little change | 21% | 6,014 |
| Increased greennessvegetation greener after the fire than before | 0.2% | 63 |
26% of the area inside the perimeter burned at high severity, about 7,587 acres; 68% 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.
| Harney County | OR | 29,337 |
Other large fires in Oregon in 2006
- Happy Valley Fire72,025 acres
- Pueblo Fire67,830 acres
- Foster Gulch Fire52,456 acres
- Star Mountain Fire45,204 acres
Monitoring Trends in Burn Severity (USGS and U.S. Forest Service). Type recorded: Wildfire.