Deer Creek Fire

201790,111 acresMontana and Wyoming

The Deer Creek Fire burned 90,111 acres, about 141 square miles, across 2 counties. It began on August 31, 2017.

Watch how it happened

Deer Creek 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
Detections580satellite 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 Deer Creek Fire
Burn severity by class
SeverityShareAcres
Moderatemixed: many trees killed, some survive20%18,337
Lowsurface fire, most trees survive71%64,292
Unburned to lowislands inside the perimeter, little change8.2%7,376
Increased greennessvegetation greener after the fire than before0.1%106

No part of the fire was classed as high severity; 20% burned at moderate 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
Big Horn CountyMT45,620
Sheridan CountyWY44,527

Other large fires in Montana and Wyoming in 2017

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