Mammoth Cave Fire

201750,410 acresIdaho

The Mammoth Cave Fire burned 50,410 acres, about 79 square miles, across 2 counties. It began on August 4, 2017.

Watch how it happened

Mammoth Cave Fire · 2017

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
Detections220satellite 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 Mammoth Cave Fire
Burn severity by class
SeverityShareAcres
Lowsurface fire, most trees survive99%49,965
Unburned to lowislands inside the perimeter, little change0.8%393
Increased greennessvegetation greener after the fire than before0.1%52

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.

Acres burned by county
Lincoln CountyID32,131
Blaine CountyID18,260

Other large fires in Idaho in 2017

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