Coal Seam Fire
Active
Big Horn County, Montana · Discovered August 23, 2026
Source: NIFC/IRWIN (interagency) · Last upstream update 6 days ago · Perimeter mapped 6 days ago (NIFC WFIGS)
Coal Seam Fire
The Coal Seam Fire fire has burned 30 acres in Big Horn County, Montana. Officials have not reported a containment figure yet. It has shown no measurable growth in the last 24 hours. Air quality near the fire is good (AQI 28).
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Incident timeline
Generated automatically from official feeds the moment they change: size, containment, evacuation zones, aircraft, and incident team updates.
Fire first listed in official incident feeds at 30 acres
45 days ago · August 24, 2026New perimeter mapped at 30 acres (national perimeter feed)
45 days ago · August 23, 2026
Recorded by Fire Nearby each time upstream data changes.
About this data
Fire Nearby aggregates official incident data and shows exactly when each value was last updated. For evacuation decisions, always follow instructions from local emergency officials and check county emergency management channels.