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 happenedCow Valley Fire · 2024
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 | 16% | 21,839 |
| Lowsurface fire, most trees survive | 81% | 109,030 |
| Unburned to lowislands inside the perimeter, little change | 2.7% | 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.
| Malheur County | OR | 134,640 |
Other large fires in Oregon in 2024
- Durkee Fire293,656 acres
- Rail Ridge Fire181,109 acres
- Battle Mountain Complex180,508 acres
- Falls Fire150,282 acres
- Hole In The Ground Fire97,980 acres
- 0501 Crazy Creek Fire90,134 acres
- Warner Peak Fire66,560 acres
- Telephone Fire52,860 acres
Monitoring Trends in Burn Severity (USGS and U.S. Forest Service). Type recorded: Wildfire.