Hilltop Fire
201732,964 acresArizona
The Hilltop Fire burned 32,964 acres, about 52 square miles, across Gila County. It began on June 25, 2017.
Watch how it happenedHilltop Fire · 2017
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 | 1.9% | 638 |
| Moderatemixed: many trees killed, some survive | 12% | 4,010 |
| Lowsurface fire, most trees survive | 42% | 13,948 |
| Unburned to lowislands inside the perimeter, little change | 35% | 11,549 |
| Increased greennessvegetation greener after the fire than before | 8.4% | 2,775 |
| Not mappedcloud, shadow or water in the satellite images | 0.1% | 44 |
2% of the area inside the perimeter burned at high severity, about 638 acres; 14% 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.
| Gila County | AZ | 32,983 |
Other large fires in Arizona in 2017
- Frye Fire54,178 acres
- Sawmill Fire47,319 acres
- Brooklyn Fire39,752 acres
- Goodwin Fire28,182 acres
- Burro Fire26,828 acres
Monitoring Trends in Burn Severity (USGS and U.S. Forest Service). Type recorded: Wildfire.