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CriticalActive

313 Mm 13

Big Horn, MT ยท Natural

An active fire at 0% containment. Conditions can change quickly. Check closures before traveling to nearby public lands.

0%Critical

400

Acres Burned

11

Days Burning

Sep 14, 2026

Discovered

3d ago

Last Update

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Threatened Public Lands

6 public land units within 75 miles

Little Bighorn Battlefield National Monument

Avoid

Monument / MT

13.2 mi

E

Custer National Forest

Check first

National Forest / MT

16.4 mi

S

Bighorn Canyon National Recreation AreaClosures in effect

Closed

Recreation Area / MT

40.1 mi

SW

Farm Service Agency Interest Of Mt

Go

Wildlife Refuge / MT

61.1 mi

W

Bighorn National Forest

Check first

National Forest / WY

71.8 mi

S

Grass Lake National Wildlife Refuge

Go

Wildlife Refuge / MT

73.4 mi

W

Official Park Alerts

Closures and dangers published by the National Park Service

Park Closure / Bighorn Canyon National Recreation Area

No Water Available at Ok-A-Beh Marina - Flushing Restrooms Closed

Due to a water shortage, flushable toilets are currently unavailable at the Ok-A-Beh Marina. Vault toilets are available at the upper parking lot and a floating restroom is available on the courtesy dock.

Situation Updates

Changes read from NIFC interagency perimeter data

313 MM 13 mapped at 400 acres

Perimeter data
Sep 22

Interagency perimeter data shows the 313 MM 13 at 400 acres.

IRWIN

Timeline

Sep 14Now

11 days since discovery

Other Fires in MT

5 additional active fires

Sand Creek

Beaverhead, MT

36K acres

83%

Davis Coulee

Big Horn, MT

15K acres

80%

Bobcat Lakes

Beaverhead, MT

11K acres

91%

Moose

Granite, MT

6K acres

15%

Black Bear

Ravalli, MT

2.1K acres

80%

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: ccffe67a-aad8-4453-8b30-413d0b2b2990

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.