The Slough Grass wildfire in Montana has been active with torching and spotting, with moderate uphill runs reported on August 7 and 8. The fire has grown to approximately 5465 acres with 10% containment as of August 8.
Official source description: 8 Miles NW from Colstrip, MT
Moderate; Uphill Runs; Spotting
Residents in the area should remain vigilant and follow evacuation orders if issued.
IRWIN ID: {A0D9B680-54D9-4943-A878-2D3F0E7A7D22}
Discovered: Aug 6, 2026
Cause: Natural
Managing Agency: DNRC
Est. Cost to Date: $150,000
Coordinates: 45.7525, -106.805
The Slough Grass Fire has burned 5,465 acres as of August 8, 2026.
As of the latest update, the Slough Grass Fire is 10% contained.
The official cause has been listed as: Natural.
The Slough Grass Fire is burning in Rosebud, MT.
Yes, as of the latest official update, the Slough Grass Fire remains active.
Real-time map, acreage, and containment for every major U.S. wildfire, updated from official NIFC data.
View Live Map →