Bull Complex

200627,487 acresUtah

The Bull Complex burned 27,487 acres, about 43 square miles, across Washington County. It began on June 28, 2006.

Watch how it happened

Bull 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
Detections115satellite 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 Bull Complex
Burn severity by class
SeverityShareAcres
Highmost vegetation consumed, soils altered12%3,194
Moderatemixed: many trees killed, some survive41%11,361
Lowsurface fire, most trees survive20%5,540
Unburned to lowislands inside the perimeter, little change27%7,391

12% of the area inside the perimeter burned at high severity, about 3,194 acres; 53% 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
Washington CountyUT27,457

Other large fires in Utah in 2006

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