Diamond Complex

201133,527 acresMontana

The Diamond Complex burned 33,527 acres, about 52 square miles, across Powder River County. It began on August 22, 2011.

Watch how it happened

Diamond Complex · 2011

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
Detections121satellite 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 Diamond Complex
Burn severity by class
SeverityShareAcres
Highmost vegetation consumed, soils altered4.5%1,517
Moderatemixed: many trees killed, some survive37%12,495
Lowsurface fire, most trees survive36%11,947
Unburned to lowislands inside the perimeter, little change6.7%2,262
Increased greennessvegetation greener after the fire than before0.4%134
Not mappedcloud, shadow or water in the satellite images15%5,172

5% of the area inside the perimeter burned at high severity, about 1,517 acres; 42% 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
Powder River CountyMT33,547

Other large fires in Montana in 2011

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