North Fork Lost Horse Fire
No longer in current feed
Ravalli County, Montana · Discovered July 25, 2026
Source: NIFC/IRWIN (interagency) · Last upstream update 21 days ago
North Fork Lost Horse Fire
The North Fork Lost Horse Fire fire has burned 118 acres in Ravalli County, Montana. It is no longer in the current official feed, so the figures on this page reflect the last data reported. Crews have fully contained the fire. Air quality near the fire is moderate (AQI 62). 1 personnel are assigned to the incident.
North Fork Lost Horse Fire size over time
5 official size readingsHolding at 118 acres across these reports.
Acreage as reported by the official incident feed, recorded by Fire Nearby each time it changes. Hover or tap the chart for each reading.
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Incident timeline
Generated automatically from official feeds the moment they change: size, containment, evacuation zones, aircraft, and incident team updates.
Containment rose to 100%
26 days ago · October 15, 2026Fire reported 100% contained
26 days ago · October 15, 2026Firefighting aircraft on scene (N101HX)
47 days ago · September 24, 2026New perimeter mapped at 118 acres (national perimeter feed)
82 days ago · August 20, 2026Containment rose to 70%
85 days ago · August 17, 2026Containment rose to 60%
90 days ago · August 13, 2026Containment rose to 50%
91 days ago · August 11, 2026Fire first listed in official incident feeds at 118 acres
91 days ago · August 11, 2026Official incident page published on InciWeb: North Fork Fire
107 days ago · July 26, 2026
Raw growth & containment readings
| Recorded | Size | Contained |
|---|---|---|
| 10/15/2026, 10:38:15 PM | 118 acres | 100% |
| 8/17/2026, 10:37:40 PM | 118 acres | 70% |
| 8/13/2026, 12:02:03 AM | 118 acres | 60% |
| 8/11/2026, 11:05:40 PM | 118 acres | 50% |
| 8/11/2026, 2:04:22 PM | 118 acres | 30% |
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.