North Fork Lost Horse Fire
At a glance
Fire Snapshot
Spatial & trend
Map & Growth
Map
46.1621, -114.3368
Growth Trend
Agency-reported size for North Fork Lost Horse Fire · 5 samples. Hover a point for exact size.
Operations
Recent activity
Timeline
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Fire discovery / ignition reported
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Status: Uncontained
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Status: Active
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Size reported at approximately 40 acres (16.2 ha)
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Containment reported at 0%
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Size reported at approximately 105 acres (42.5 ha)
Environment
Current Conditions
Current Conditions
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Smoke
Layer analysis: Regional PM2.5 forecast haze is active on the live map; point density at this fire is not classified from plume polygons.
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Nearby & Resources
Nearby Fires
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No full road closures reported within about 25 mi right now.
Nearby Communities
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Largest Fires in Montana
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Insight
Why This Fire Matters
- One of the 10 largest active fires in Montana (currently ranked #9 among tracked incidents in this area).
- Natural ignition.
- Fire has remained active for 2 days.
Technical Incident Details
| Fire Name | North Fork Lost Horse |
|---|---|
| Agency Fire ID | 2026-MTBRF-000255 |
| Country | United States |
| Province / State | Montana |
| Location | Darby, Ravalli |
| Latitude | 46.16211 |
| Longitude | -114.33685 |
| Last Updated | Jul 26, 2026, 9:24 PM PDT |
| Current Status | Active |
| Tracking | Actively tracked |
| Acres Burned | 105 ac |
| Containment % | 0% |
| Cause | Natural |
| Personnel | 33 |
| Estimated cost | $100,000 |
| Fuel | Timber (Litter and Understory) |
| Complexity | Type 3 Incident |
| Nearby towns | Loading… |
| Discovery Date | Jul 24, 2026, 5:49 PM PDT |
| Fire Type | OC |
| Data Source | nifc-wfigs |
Questions
Frequently asked questions
What is the current size of this fire?
The North Fork Lost Horse Fire is currently reported at approximately 105 acres (42 hectares).
Where is this fire located?
The North Fork Lost Horse Fire is located in Montana, United States at approximately 46.1621, -114.3368.
Is this fire contained?
Reported containment is 0% (status: Active).
When was it discovered?
Discovery (or first listed date) is recorded as 2026-07-25.
Is smoke affecting nearby communities?
No smoke plume is currently mapped near this fire in the smoke analysis layer.
What towns are near this fire?
No nearby towns were identified within about 50 km of this incident.
How many nearby fires are active?
There are 8 other active wildfires nearby.
What are current weather conditions?
Weather observations are unavailable for this location right now.
Is this fire still actively tracked?
This fire is actively tracked (last update 33 minutes ago).