Roosevelt Fire
201855,290 acresWyoming
The Roosevelt Fire burned 55,290 acres, about 86 square miles, across Sublette County. It began on September 15, 2018.
Watch how it happenedRoosevelt Fire · 2018
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 |
|---|---|---|
| Highmost vegetation consumed, soils altered | 26% | 14,276 |
| Moderatemixed: many trees killed, some survive | 17% | 9,524 |
| Lowsurface fire, most trees survive | 35% | 19,105 |
| Unburned to lowislands inside the perimeter, little change | 22% | 12,359 |
26% of the area inside the perimeter burned at high severity, about 14,276 acres; 43% 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.
| Sublette County | WY | 55,329 |
Other large fires in Wyoming in 2018
- Terek Fire43,895 acres
- Ryan Fire28,851 acres
Monitoring Trends in Burn Severity (USGS and U.S. Forest Service). Type recorded: Wildfire.