Oregon Trail Fire

200031,558 acresIdaho

The Oregon Trail Fire burned 31,558 acres, about 49 square miles, across Elmore County. It began on August 7, 2000.

Watch how it happened

Oregon Trail Fire · 2000

How it happened

See how severely each place burned, revealed outward from where it started.

About this replay
IgnitionAugust 7, 2000Historical replay — order not recorded
Final area31,558 ac
Revealed—
Counties1

How severely it burned

Burn severity inside the final perimeter, classified from Landsat images taken before and after the fire.

Map of burn severity across the Oregon Trail Fire
Burn severity by class
SeverityShareAcres
Highmost vegetation consumed, soils altered0.1%19
Moderatemixed: many trees killed, some survive6.0%1,902
Lowsurface fire, most trees survive58%18,405
Unburned to lowislands inside the perimeter, little change34%10,845
Increased greennessvegetation greener after the fire than before1.2%387

under 1% of the area inside the perimeter burned at high severity, about 19 acres; 6% 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.

Acres burned by county
Elmore CountyID31,574

Other large fires in Idaho in 2000

Monitoring Trends in Burn Severity (USGS and U.S. Forest Service). Type recorded: Wildfire.