Ro Fire
199225,605 acresIdaho
The Ro Fire burned 25,605 acres, about 40 square miles, across Blaine County. It began on August 2, 1992.
Watch how it happenedRo Fire · 1992
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 | 4.4% | 1,135 |
| Moderatemixed: many trees killed, some survive | 30% | 7,676 |
| Lowsurface fire, most trees survive | 41% | 10,594 |
| Unburned to lowislands inside the perimeter, little change | 23% | 5,988 |
| Increased greennessvegetation greener after the fire than before | 0.5% | 135 |
| Not mappedcloud, shadow or water in the satellite images | 0.3% | 76 |
4% of the area inside the perimeter burned at high severity, about 1,135 acres; 34% 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.
| Blaine County | ID | 25,595 |
Other large fires in Idaho in 1992
- Foothills Fire228,509 acres
- Black Ridge Fire147,957 acres
Monitoring Trends in Burn Severity (USGS and U.S. Forest Service). Type recorded: Wildfire.