Back to tracker
Contained

Big Boulder

Custer, ID · Undetermined

This fire is no longer active. It burned 0 acres in Custer before dropping off the national incident feed.

0%Inactive

0

Acres Burned

1

Days Burning

Oct 21, 2026

Discovered

22h ago

Last Update

Get fire alerts

Your browser sends the coordinates. We store the point to match fires against it, and never look up your address.

Free, no account. We email you to confirm first, and every alert carries a one-click unsubscribe.

Public Lands Nearby

12 public land units within 75 miles

Cecil D. Andrus-White Clouds Wilderness Area

Go

Wilderness / ID

8.4 mi

W

Cecil D. Andrus-White Clouds Wilderness

Go

Wilderness / ID

8.4 mi

W

Jim Mcclure-Jerry Peak Wilderness

Go

Wilderness / ID

11.4 mi

SE

Jim McClure-Jerry Peak Wilderness Area

Go

Wilderness / ID

11.9 mi

SE

Hemingway-Boulders Wilderness

Go

Wilderness / ID

14.4 mi

S

Sawtooth National Recreation Area

Go

Recreation Area / ID

17.4 mi

W

Challis National Forest

Go

National Forest / ID

19 mi

NE

Sawtooth Wilderness

Check first

Wilderness / ID

29.9 mi

W

Anadromous Spawning Area

Go

NCA / ID

47.5 mi

NW

Placer & Dredge Mining Prohibition Anadromous Spawning Area

Go

NCA / ID

50 mi

W

Boise National Forest

Go

National Forest / ID

57 mi

W

Sawtooth National Forest

Go

National Forest / ID

58.3 mi

S

Timeline

Oct 21Now

1 day since discovery

Other Fires in ID

5 additional active fires

Upper Smith

Boundary, ID

4.8K acres

41%

Silver

Boundary, ID

2.6K acres

30%

Parker Lake

Boundary, ID

1.5K acres

1%

East Fork

Camas, ID

266 acres

5%

Nugget Hill

Shoshone, ID

70 acres

0%

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: 76b21fd3-2522-44ba-a578-c420d313cbd2

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.