Canyon Ferry Complex (Cave Gulch)

200026,977 acresMontana

The Canyon Ferry Complex (Cave Gulch) burned 26,977 acres, about 42 square miles, across 2 counties. It began on July 23, 2000.

Watch how it happened

Canyon Ferry Complex (Cave Gulch) · 2000

How it happened

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

About this replay
IgnitionJuly 23, 2000Historical replay — order not recorded
Final area26,977 ac
Revealed—
Counties2

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 Canyon Ferry Complex (Cave Gulch)
Burn severity by class
SeverityShareAcres
Highmost vegetation consumed, soils altered43%11,477
Moderatemixed: many trees killed, some survive20%5,389
Lowsurface fire, most trees survive15%4,054
Unburned to lowislands inside the perimeter, little change22%6,014
Increased greennessvegetation greener after the fire than before0.2%43

43% of the area inside the perimeter burned at high severity, about 11,477 acres; 63% 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
Broadwater CountyMT17,930
Lewis and Clark CountyMT9,065

Other large fires in Montana in 2000

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