Alpine Lake Fire
201239,149 acresWyoming
The Alpine Lake Fire burned 39,149 acres, about 61 square miles, across Fremont County. It began on August 9, 2012.
Watch how it happenedAlpine Lake Fire · 2012
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 | 13% | 5,247 |
| Moderatemixed: many trees killed, some survive | 26% | 10,252 |
| Lowsurface fire, most trees survive | 35% | 13,787 |
| Unburned to lowislands inside the perimeter, little change | 25% | 9,818 |
| Increased greennessvegetation greener after the fire than before | 0.1% | 40 |
13% of the area inside the perimeter burned at high severity, about 5,247 acres; 40% 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.
| Fremont County | WY | 39,158 |
Other large fires in Wyoming in 2012
- Arapaho Fire99,972 acres
- Oil Creek Fire63,138 acres
- Fontenelle Fire58,079 acres
- North Buffalo Fire28,306 acres
- Cato Fire26,808 acres
Monitoring Trends in Burn Severity (USGS and U.S. Forest Service). Type recorded: Wildfire.