Cow Valley Fire

2024134,547 acresOregon

The Cow Valley Fire burned 134,547 acres, about 210 square miles, across Malheur County. It began on July 11, 2024.

Watch how it happened

Cow Valley Fire · 2024

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
Detections448satellite 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 Cow Valley Fire
Burn severity by class
SeverityShareAcres
Moderatemixed: many trees killed, some survive16%21,839
Lowsurface fire, most trees survive81%109,030
Unburned to lowislands inside the perimeter, little change2.7%3,625

No part of the fire was classed as high severity; 16% 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
Malheur CountyOR134,640

Other large fires in Oregon in 2024

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