Northern Rockies Complex Incident Management Team 3

Derby Fire Quick Facts: Tuesday, August 26, 2025
Total acreage: 5,346 acres
0% containment
844 personnel

Firefighters tested structure protection systems yesterday in the Sweetwater Canyon area. In this photo, a sprinkler wets down the lawn of a resident, drawing water from a foldable water tank. The water tanks are filled by fire engines or water tenders.

Pumps push the water from the water tank through hose lays to the sprinkler systems. Photo by Stephen Rawding/Derby Fire.