Richard Spring Fire

2021168,686 acresMontana

The Richard Spring Fire burned 168,686 acres, about 264 square miles, across Rosebud County. It began on August 8, 2021.

Watch how it happened

Richard Spring Fire · 2021

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
Detections2,313satellite 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 Richard Spring Fire
Burn severity by class
SeverityShareAcres
Highmost vegetation consumed, soils altered4.5%7,675
Moderatemixed: many trees killed, some survive14%24,288
Lowsurface fire, most trees survive58%98,135
Unburned to lowislands inside the perimeter, little change23%38,024
Increased greennessvegetation greener after the fire than before0.3%527

5% of the area inside the perimeter burned at high severity, about 7,675 acres; 19% 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
Rosebud CountyMT168,763

Other large fires in Montana in 2021

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