Las Pilitas Fire

198575,969 acresCalifornia

The Las Pilitas Fire burned 75,969 acres, about 119 square miles, across San Luis Obispo County. It began on July 1, 1985.

Watch how it happened

Las Pilitas Fire · 1985

How it happened

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

About this replay
IgnitionJuly 1, 1985Historical replay — order not recorded
Final area75,969 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 Las Pilitas Fire
Burn severity by class
SeverityShareAcres
Highmost vegetation consumed, soils altered19%14,629
Moderatemixed: many trees killed, some survive14%10,800
Lowsurface fire, most trees survive6.6%5,030
Unburned to lowislands inside the perimeter, little change55%41,814
Increased greennessvegetation greener after the fire than before4.9%3,695

19% of the area inside the perimeter burned at high severity, about 14,629 acres; 33% 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
San Luis Obispo CountyCA75,840

Other large fires in California in 1985

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