Horse Heaven Complex (Six Prong)
200728,248 acresWashington
The Horse Heaven Complex (Six Prong) burned 28,248 acres, about 44 square miles, across Klickitat County. It began on July 13, 2007.
Watch how it happenedHorse Heaven Complex (Six Prong) · 2007
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 |
|---|---|---|
| Moderatemixed: many trees killed, some survive | 21% | 6,010 |
| Lowsurface fire, most trees survive | 67% | 18,882 |
| Unburned to lowislands inside the perimeter, little change | 11% | 3,146 |
| Increased greennessvegetation greener after the fire than before | 0.7% | 210 |
No part of the fire was classed as high severity; 21% burned at moderate 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.
| Klickitat County | WA | 28,229 |
Other large fires in Washington in 2007
- Wautoma Fire77,978 acres
Monitoring Trends in Burn Severity (USGS and U.S. Forest Service). Type recorded: Wildfire.