Wld Horse Fire
200041,870 acresWyoming
The Wld Horse Fire burned 41,870 acres, about 65 square miles, across Sweetwater County. It began on July 3, 2000.
Watch how it happenedWld Horse Fire · 2000
How it happened
See how severely each place burned, revealed outward from where it started.
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 | 11% | 4,792 |
| Moderatemixed: many trees killed, some survive | 54% | 22,667 |
| Lowsurface fire, most trees survive | 28% | 11,842 |
| Unburned to lowislands inside the perimeter, little change | 6.1% | 2,568 |
11% of the area inside the perimeter burned at high severity, about 4,792 acres; 66% 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.
| Sweetwater County | WY | 41,881 |
Other large fires in Wyoming in 2000
- Katesbasin Fire141,297 acres
- Sheep Mt Fire31,386 acres
Monitoring Trends in Burn Severity (USGS and U.S. Forest Service). Type recorded: Wildfire.