Fort Copper Fire

198736,302 acresCalifornia

The Fort Copper Fire burned 36,302 acres, about 57 square miles, across Siskiyou County. It began on August 30, 1987.

Watch how it happened

Fort Copper Fire · 1987

How it happened

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

About this replay
IgnitionAugust 30, 1987Historical replay — order not recorded
Final area36,302 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 Fort Copper Fire
Burn severity by class
SeverityShareAcres
Highmost vegetation consumed, soils altered16%5,958
Moderatemixed: many trees killed, some survive23%8,394
Lowsurface fire, most trees survive41%14,918
Unburned to lowislands inside the perimeter, little change19%6,949
Increased greennessvegetation greener after the fire than before0.2%83

16% of the area inside the perimeter burned at high severity, about 5,958 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.

Acres burned by county
Siskiyou CountyCA36,332

Other large fires in California in 1987

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