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 happened

Horse Heaven Complex (Six Prong) · 2007

How it happened

Watch it burn in the order satellites saw it, coloured by how severely each place burned.

About this replay
Date (UTC)—Historical replay
Burned so far—acres
High severity—of the area so far
Detections64satellite fire pixels

How severely it burned

Burn severity inside the final perimeter, classified from Landsat images taken before and after the fire.

Map of burn severity across the Horse Heaven Complex (Six Prong)
Burn severity by class
SeverityShareAcres
Moderatemixed: many trees killed, some survive21%6,010
Lowsurface fire, most trees survive67%18,882
Unburned to lowislands inside the perimeter, little change11%3,146
Increased greennessvegetation greener after the fire than before0.7%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.

Acres burned by county
Klickitat CountyWA28,229

Other large fires in Washington in 2007

Monitoring Trends in Burn Severity (USGS and U.S. Forest Service). Type recorded: Wildfire.