Pine Ridge Complex

2006103,158 acresMontana

The Pine Ridge Complex burned 103,158 acres, about 161 square miles, across 2 counties. It began on July 16, 2006.

Watch how it happened

Pine Ridge Complex · 2006

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
Detections452satellite 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 Pine Ridge Complex
Burn severity by class
SeverityShareAcres
Highmost vegetation consumed, soils altered15%15,041
Moderatemixed: many trees killed, some survive54%55,699
Lowsurface fire, most trees survive23%24,060
Unburned to lowislands inside the perimeter, little change4.4%4,575
Not mappedcloud, shadow or water in the satellite images3.7%3,776

15% of the area inside the perimeter burned at high severity, about 15,041 acres; 69% 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
Big Horn CountyMT69,299
Yellowstone CountyMT33,774

Other large fires in Montana in 2006

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