Benwalk Fire

201228,133 acresIdaho

The Benwalk Fire burned 28,133 acres, about 44 square miles, across Elmore County. It began on July 9, 2012.

Watch how it happened

Benwalk Fire · 2012

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
Detections70satellite 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 Benwalk Fire
Burn severity by class
SeverityShareAcres
Highmost vegetation consumed, soils altered0.9%253
Moderatemixed: many trees killed, some survive24%6,873
Lowsurface fire, most trees survive57%16,084
Unburned to lowislands inside the perimeter, little change4.4%1,241
Increased greennessvegetation greener after the fire than before0.1%27
Not mappedcloud, shadow or water in the satellite images13%3,656

1% of the area inside the perimeter burned at high severity, about 253 acres; 25% 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
Elmore CountyID28,143

Other large fires in Idaho in 2012

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