Ranch Fire

200737,006 acresCalifornia

The Ranch Fire burned 37,006 acres, about 58 square miles, across 2 counties. It began on October 20, 2007.

Watch how it happened

Ranch Fire · 2007

How it happened

Watch it burn in the order satellites saw it, coloured by how severely each place burned.

About this replay
Date (UTC)—Historical replay
Burned so far—acres
High severity—of the area so far
Detections244satellite fire pixels

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 Ranch Fire
Burn severity by class
SeverityShareAcres
Highmost vegetation consumed, soils altered1.5%537
Moderatemixed: many trees killed, some survive15%5,645
Lowsurface fire, most trees survive37%13,688
Unburned to lowislands inside the perimeter, little change28%10,246
Increased greennessvegetation greener after the fire than before19%6,869
Not mappedcloud, shadow or water in the satellite images0.1%22

1% of the area inside the perimeter burned at high severity, about 537 acres; 17% 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
Los Angeles CountyCA25,559
Ventura CountyCA11,451

Other large fires in California in 2007

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