Active Wildfires
North Fork Lost Horse WildfireMontana | 2026
North Fork Lost Horse Wildfire is a reported wildfire in Darby, Ravalli, Montana. The latest available agency record reports 118 acres and 70% containment. The agency record was updated Sep 17, 2026, 6:40 PM ET. NASA FIRMS heat shown on the map is a separate satellite observation and is not automatically attributed to this incident.
Official incident summary
Reported acreage, containment, discovery and location from the available agency record.
70% reported contained. A containment percentage does not establish that the fire is out.
North Fork Lost Horse Wildfire map
The fire pin and blue ring mark this incident's reported point. They are not a fire boundary or evacuation zone.
About North Fork Lost Horse Wildfire
WFIGS/NIFC gives Jul 24, 2026, 8:49 PM ET as the reported discovery date and time. The reported cause is listed as "Natural".
Agency location or incident note: “10 Miles NW from Darby, MT”.
The current record lists 3 personnel. Jurisdiction is listed as USFS. Reported fuels or fuel models include Timber (Litter and Understory). Reported fire behavior is described as Minimal; Smoldering; Backing.
- Discovery
- Jul 24, 2026
- Reported cause
- Natural
- Personnel
- 3
- Agency
- USFS
Source note: assembled automatically by WildfireSignal from WFIGS/NIFC agency records, not on-scene reporting. Details describe the available record, not verified conditions right now. How we use this data.
What changed in the saved reports?
These are changes between saved records, not a measured spread rate. Decreases can reflect mapping corrections; unchanged figures do not prove conditions are unchanged.
Range: 118 to 118 acres. Exact values are in the snapshot table.
Range: 70 to 70%. Exact values are in the snapshot table.
View saved snapshot table (43)
Collection begins when WildfireSignal first observes a record. Up to 48 recent observations are shown, within the existing 35-day retention window.
| Saved by WildfireSignal | Agency record updated | Reported acres | Containment | Feed presence |
|---|---|---|---|---|
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | In observed feed | ||
| 118 | 70% | Not in observed feed | ||
| 118 | 70% | In observed feed |
Incident facts
- Reported location
- Darby, Ravalli, Montana
- Discovery
- Reported cause
- Natural
- Personnel reported
- 3
- Primary fuel / fuel model
- Timber (Litter and Understory)
- Reported fire behavior
- Minimal
- Behavior detail
- Smoldering
- Behavior detail
- Smoldering
- Behavior detail
- Backing
- Jurisdictional agency
- USFS
- Management organization
- Type 4 IC
- Incident complexity
- Type 3 Incident
- Incident identifier
- 2026-MTBRF-000255
- Situation report date
- Reported coordinates
- 46.1620, -114.3370
Optional facts appear only when present in the feed. Agency abbreviations and fuel-model labels are shown as reported, without guessing missing details.
Questions about North Fork Lost Horse Wildfire
Where is North Fork Lost Horse Wildfire?
The official incident record places it in Darby, Ravalli, Montana. The map pin is a reported location, not the full fire boundary.
How large is North Fork Lost Horse Wildfire?
The latest available record reports 118 acres (approximately 48 hectares). This is reported incident size, not a measurement of current flames, and agencies can revise it.
How contained is North Fork Lost Horse Wildfire?
The latest available record reports 70% containment. Containment describes control work intended to stop spread. It is not the percentage extinguished or an all-clear for nearby communities.
When was North Fork Lost Horse Wildfire discovered?
The reported discovery date is Jul 24, 2026, 8:49 PM ET. Discovery time may differ from ignition time; elapsed time does not establish continuous burning.
Where should I check evacuation orders and road closures?
Use local emergency management, the sheriff or other law enforcement, and official fire-agency updates. WildfireSignal does not verify evacuation zones, open roads, or safe travel routes. The official-information section provides starting points; it does not establish that orders are present or absent.
Why can the map and the incident report differ?
Agency records, mapped perimeters and NASA satellite detections are updated on different schedules. Satellite heat near a fire is not automatically attributed to that incident. Older or unavailable data does not establish that an area is safe.