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Inactive

North Fork Lost Horse

Ravalli, MT · Natural

This fire is no longer active. It burned 118 acres in Ravalli before dropping off the national incident feed.

0%Inactive

118

Acres Burned

109

Days Burning

Jul 25, 2026

Discovered

1w ago

Last Update

Growth

No growth in the last day, containment at 100%
Aug 6 / 118 acresNov 3 / 118 acres

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Public Lands Nearby

12 public land units within 75 miles

Bitterroot National Forest

Go

National Forest / MT

14.3 mi

SE

Selway-Bitterroot Wilderness

Go

Wilderness / ID

23.1 mi

W

Lee Metcalf National Wildlife Refuge

Go

Wildlife Refuge / MT

30.1 mi

NE

Welcome Creek Wilderness

Go

Wilderness / MT

41.8 mi

NE

Anaconda Pintler Wilderness

Go

Wilderness / MT

44.1 mi

E

Clearwater National Forest

Check first

National Forest / ID

48 mi

NW

Aerial Fire Depot Other

Go

National Forest / MT

54 mi

N

Nezperce National Forest

Go

National Forest / ID

56.5 mi

SW

Rattlesnake National Recreation Area

Go

Recreation Area / MT

62.4 mi

N

Rattlesnake Wilderness

Go

Wilderness / MT

64.5 mi

N

Lolo National Forest

Go

National Forest / MT

68.9 mi

N

Deerlodge National Forest

Go

National Forest / MT

71.7 mi

E

Situation Updates

Posted by the incident management team on InciWeb, plus changes read from NIFC interagency perimeter data

North Fork Lost Horse update: 118 acres, 100% contained

Perimeter data
Oct 15

Per interagency perimeter data, the North Fork Lost Horse containment moved from 70% to 100%.

IRWIN

Lost Horse Road (Forest Service Road 429) is OPEN 09-01-2026

Closure
Sep 1

Lost Horse Road (Forest Service Road 429) and Lick Creek Road (FS 5621) are OPEN.

InciWeb

Aug. 20, 2026: Lost Horse Road (Forest Service Road 429) Closure 08-20-2026

Closure
Aug 20

Aug. 20, 2026: A closure is in place at the junction of Lost Horse Road (Forest Service Road 429) and Lick Creek Road (FS 5621) due to heavy equipment traffic associated with the North Fork Fire . This closure only affects Lost Horse Road. Lick Creek Road is open.

InciWeb

FINAL UPDATE North Fork, Black Bear and Butterfly Fires 08-19-2026

Incident team
Aug 19

FINAL UPDATE North Fork, Butterfly and Black Bear Fires—8/19/2026 Local Type 3 Incident Command Team; Incident Commander: Chris Kramer North Fork Fire: 10 miles northwest of Darby, MT. Start date—7/24/2026. Currently 118 acres and 70% contained. 94 personnel assigned. Butterfly Fire: 10 miles east of Hamilton, MT. Start date—8/1/2026. Currently 67 acres and 100% contained. Black Bear Fire: 15 mile...

InciWeb

North Fork Lost Horse update: 118 acres, 70% contained

Perimeter data
Aug 18

Per interagency perimeter data, the North Fork Lost Horse containment moved from 60% to 70%.

IRWIN

North Fork, Black Bear and Butterfly Fires Daily Update 08-17-2026

Incident team
Aug 17

Local Type 3 Incident Command Team; Incident Commander: Chris Kramer North Fork Fire: 10 miles northwest of Darby, MT. Start date—7/24/2026. Currently 118 acres and 60% contained. 95 personnel assigned. Butterfly Fire: 10 miles east of Hamilton, MT. Start date—8/1/2026. Currently 67 acres and 100% contained. 7 personnel assigned. Black Bear Fire: 15 miles E of Hamilton MT. Start date—8/1/2026. Cur...

InciWeb

North Fork, Black Bear and Butterfly Fires Daily Update— 08-15-2026

Incident team
Aug 15

Local Type 3 Incident Command Team; Incident Commander: Chris Kramer North Fork Fire: 10 miles northwest of Darby, MT. Start date—7/24/2026. Currently 118 acres and 60% contained. 94 personnel assigned. Butterfly Fire: 10 miles east of Hamilton, MT. Start date—8/1/2026. Currently 67 acres and 97% contained. 10 personnel assigned. Black Bear Fire: 15 miles E of Hamilton MT. Start date—8/1/2026. Cur...

InciWeb

North Fork, Black Bear and Butterfly Fires Daily Update 08-14-2026

Incident team
Aug 14

Local Type 3 Incident Command Team; Incident Commander: Chris Kramer North Fork Fire: 10 miles northwest of Darby, MT. Start date—7/24/2026. Currently 118 acres and 60% contained. 94 personnel assigned. Butterfly Fire: 10 miles east of Hamilton, MT. Start date—8/1/2026. Currently 67 acres and 97% contained. 10 personnel assigned. Black Bear Fire: 15 miles E of Hamilton MT. Start date—8/1/2026. Cur...

InciWeb

North Fork, Black Bear, and Butterfly Fires Daily Update 08-13-2026

Incident team
Aug 13

Local Type 3 Incident Command Team; Incident Commander : Chris Kramer Fire Information Phone: 406.420.1174 Email: 2026.northforklosthorse@firenet.gov North Fork Fire: 10 Miles 10 miles northwest of Darby, MT. Start date—7/24/2026. Currently 118 acres and 60% contained. 98 personnel assigned. Butterfly Fire: 10 miles east of Hamilton, MT. Start date—8/1/2026. Currently 67 acres and 97% contained. 1...

InciWeb

North Fork Lost Horse update: 118 acres, 60% contained

Perimeter data
Aug 13

Per interagency perimeter data, the North Fork Lost Horse containment moved from 50% to 60%.

IRWIN

North Fork, Black Bear, and Butterfly Fires Daily Update 08-12-2026

Announcement
Aug 12

Local Type 3 Incident Command Team; Incident Commander: Zach Lee North Fork Fire: 10 miles northwest of Darby, MT. Start date—7/24/2026. Currently 118 acres and 50% contained. 157 personnel assigned. Butterfly Fire: 10 miles east of Hamilton, MT. Start date—8/1/2026. Currently 67 acres and 60% contained. 19 personnel assigned. Black Bear Fire: 15 miles E of Hamilton MT. Start date—8/1/2026. Curren...

InciWeb

North Fork Lost Horse update: 118 acres, 50% contained

Perimeter data
Aug 12

Per interagency perimeter data, the North Fork Lost Horse containment moved from 30% to 50%.

IRWIN

North Fork, Black Bear and Butterfly Fires Daily Update 08-11-2026

Incident team
Aug 11

Local Type 3 Incident Command Team; Incident Commander: Zach Lee North Fork Fire: 10 miles northwest of Darby, MT. Start date—7/24/2026. Currently 118 acres and 30% contained. 166 personnel assigned. Butterfly Fire: 10 miles east of Hamilton, MT. Start date—8/1/2026. Currently 67 acres and 60% contained. 17 personnel assigned. Black Bear Fire: 15 miles E of Hamilton MT. Start date—8/1/2026. Curren...

InciWeb

North Fork, Black Bear and Butterfly Fires Daily Update 08-10-2026

Incident team
Aug 10

Local Type 3 Incident Command Team; Incident Commander: Zach Lee North Fork Fire: 10 miles northwest of Darby, MT. Started 7/24/2026. Currently 118 acres and 30% contained. 166 personnel assigned. Butterfly Fire: 10 miles east of Hamilton, MT. Started 8/1/2026. Currently 67 acres and 40% contained. 17 personnel assigned. Black Bear Fire: 15 miles E of Hamilton MT. Started 8/1/2026. Currently 1807 ...

InciWeb

North Fork Lost Horse mapped at 118 acres, 30% contained

Perimeter data
Aug 10

Interagency perimeter data shows the North Fork Lost Horse at 118 acres, 30% contained.

IRWIN

Timeline

Jul 25Now

109 days since discovery

Other Fires in Montana

2 other active fires

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Data Sources

Fire data from NIFC Wildland Fire Interagency Geospatial Services (WFIGS) via IRWIN. Satellite hotspots from NASA FIRMS VIIRS. Situation updates are either posted by the incident management team on InciWeb or read by us from WFIGS perimeter data, and each one says which. Air quality data from EPA AirNow. Public lands boundaries from USGS PAD-US 4.0.

IRWIN ID: 4e04440d-fea1-4fc8-b961-f35f1d3bdf42

Important

More Than Just Parks aggregates third-party data from EPA AirNow, NOAA, NASA FIRMS, and NIFC/WFIGS. Readings can be delayed, estimated, incomplete, or wrong, and conditions on the ground change quickly. This tool is for general information only and is not a substitute for official air quality alerts, fire and evacuation orders, land manager closures, or emergency services. Verify with the managing agency and local authorities before making any travel, health, or safety decision. We make no warranty as to accuracy and accept no liability for decisions made using this information. This is not an emergency or evacuation tool. If you are near a fire, follow official evacuation orders and call 911. Terms of Service.