Gray Fire

198928,767 acresNew Mexico

The Gray Fire burned 28,767 acres, about 45 square miles, across Hidalgo County. It began on June 16, 1989.

Watch how it happened

Gray Fire · 1989

How it happened

See how severely each place burned, revealed outward from where it started.

About this replay
IgnitionJune 16, 1989Historical replay — order not recorded
Final area28,767 ac
Revealed—
Counties1

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 Gray Fire
Burn severity by class
SeverityShareAcres
Highmost vegetation consumed, soils altered20%5,685
Moderatemixed: many trees killed, some survive25%7,053
Lowsurface fire, most trees survive37%10,647
Unburned to lowislands inside the perimeter, little change19%5,370

20% of the area inside the perimeter burned at high severity, about 5,685 acres; 44% 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
Hidalgo CountyNM28,758

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