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Inactive

Sieben

Lewis and Clark, MT · Undetermined

This fire is no longer active. It burned 51 acres in Lewis and Clark before dropping off the national incident feed.

0%Inactive

51

Acres Burned

81

Days Burning

Aug 22, 2026

Discovered

2mo ago

Last Update

Growth

Grew 33 acres in the last day
Aug 22 / 18 acresAug 23 / 51 acres

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Public Lands Nearby

8 public land units within 75 miles

Helena National Forest

Go

National Forest / MT

11.5 mi

S

Gates Of The Mountains Wilderness

Go

Wilderness / MT

13.9 mi

E

Lewis & Clark National Forest

Go

National Forest / MT

36.7 mi

NE

Scapegoat Wilderness

Go

Wilderness / MT

41.5 mi

NW

Rocky Mountain Front Conservation Management Area

Go

NCA / MT

57.6 mi

NW

Deerlodge National Forest

Go

National Forest / MT

61.9 mi

SW

Benton Lake National Wildlife Refuge

Go

Wildlife Refuge / MT

65 mi

NE

Bob Marshall Wilderness

Go

Wilderness / MT

73.9 mi

NW

Situation Updates

Changes read from NIFC interagency perimeter data

SIEBEN update: 51 acres

Perimeter data
Aug 22

Per interagency perimeter data, the SIEBEN was remapped 2 acres lower to 51.

IRWIN

SIEBEN update: 53 acres

Perimeter data
Aug 22

Per interagency perimeter data, the SIEBEN grew 35 acres to 53.

IRWIN

SIEBEN mapped at 18 acres

Perimeter data
Aug 22

Interagency perimeter data shows the SIEBEN at 18 acres.

IRWIN

Timeline

Aug 22Now

81 days since discovery

Other Fires in Montana

2 other active fires

Montana wildfire map: every fire burning in the state and the past year's fires. Planning a trip? Montana national parks guide.

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: 55c519e9-7634-4908-9192-19f098d96bf2

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.