Unnamed Fire
199043,529 acresMinnesota
The Unnamed Fire burned 43,529 acres, about 68 square miles, across 2 counties. It began on April 18, 1990.
Watch how it happenedUnnamed Fire · 1990
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 |
|---|---|---|
| Lowsurface fire, most trees survive | 78% | 34,027 |
| Unburned to lowislands inside the perimeter, little change | 22% | 9,484 |
Most of the area inside the perimeter burned at low severity or not at all.
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.
| Beltrami County | MN | 42,947 |
| Marshall County | MN | 584 |
Other large fires in Minnesota in 1990
- Unnamed Fire32,689 acres
- Unnamed Fire26,357 acres
Monitoring Trends in Burn Severity (USGS and U.S. Forest Service). Type recorded: Wildfire.