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Inactive

Big Rock

Jefferson, ID · Natural

This fire is no longer active. It burned 2,142 acres in Jefferson before dropping off the national incident feed.

0%Inactive

2,142

Acres Burned

102

Days Burning

Jul 31, 2026

Discovered

3w ago

Last Update

Growth

No growth in the last day, containment at 100%
Aug 5 / 2,199 acresOct 17 / 2,142 acres

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Public Lands Nearby

12 public land units within 75 miles

Camas National Wildlife Refuge

Go

Wildlife Refuge / ID

36.4 mi

NW

Targhee National Forest

Go

National Forest / ID

36.7 mi

N

Jedediah Smith Wilderness

Go

Wilderness / WY

39.6 mi

E

Grays Lake National Wildlife Refuge

Go

Wildlife Refuge / ID

41.6 mi

S

Winegar Hole Wilderness

Go

Wilderness / WY

46.5 mi

NE

Grand Teton National ParkClosures in effect

Closed

National Park / WY

49.1 mi

E

National Elk Refuge

Go

Wildlife Refuge / WY

49.6 mi

E

Caribou National Forest

Go

National Forest / ID

57 mi

S

Gros Ventre Wilderness

Go

Wilderness / WY

64 mi

E

Teton National Forest

Go

National Forest / WY

67.3 mi

E

Red Rock Lakes National Wildlife Refuge Wilderness Area

Go

Wilderness / MT

68.7 mi

N

Red Rock Lakes National Wildlife Refuge

Go

Wildlife Refuge / MT

69 mi

N

Official Park Alerts

Closures and dangers published by the National Park Service

Park Closure / Grand Teton National Park

Death Canyon Trailhead Construction Closure

Death Canyon Road and Trailhead are closed to all use. Start hikes at alternative trailheads such as Granite Canyon, LSR Preserve, and Taggart Lake.

Official notice

Situation Updates

Changes read from NIFC interagency perimeter data

Big Rock update: 2,142 acres, 100% contained

Perimeter data
Aug 14

Per interagency perimeter data, the Big Rock containment moved from 97% to 100%.

IRWIN

Big Rock update: 2,142 acres, 97% contained

Perimeter data
Aug 13

Per interagency perimeter data, the Big Rock containment moved from 90% to 97%.

IRWIN

Big Rock update: 2,142 acres, 90% contained

Perimeter data
Aug 11

Per interagency perimeter data, the Big Rock containment moved from 85% to 90%.

IRWIN

Big Rock mapped at 2,142 acres, 85% contained

Perimeter data
Aug 10

Interagency perimeter data shows the Big Rock at 2,142 acres, 85% contained.

IRWIN

Big Rock mapped at 2,142 acres, 60% contained

Perimeter data
Aug 9

Interagency perimeter data shows the Big Rock at 2,142 acres, 60% contained.

IRWIN

Big Rock mapped at 2,142 acres, 55% contained

Perimeter data
Aug 8

Interagency perimeter data shows the Big Rock at 2,142 acres, 55% contained.

IRWIN

Big Rock mapped at 2,142 acres, 54% contained

Perimeter data
Aug 7

Interagency perimeter data shows the Big Rock at 2,142 acres, 54% contained.

IRWIN

Big Rock mapped at 2,149 acres, 22% contained

Perimeter data
Aug 6

Interagency perimeter data shows the Big Rock at 2,149 acres, 22% contained.

IRWIN

Big Rock mapped at 2,199 acres, 22% contained

Perimeter data
Aug 5

Interagency perimeter data shows the Big Rock at 2,199 acres, 22% contained.

IRWIN

Big Rock mapped at 2,204 acres, 0% contained

Perimeter data
Aug 4

Interagency perimeter data shows the Big Rock at 2,204 acres, 0% contained.

IRWIN

Big Rock mapped at 2,482 acres, 0% contained

Perimeter data
Aug 3

Interagency perimeter data shows the Big Rock at 2,482 acres, 0% contained.

IRWIN

Big Rock mapped at 2,500 acres, 0% contained

Perimeter data
Aug 2

Interagency perimeter data shows the Big Rock at 2,500 acres, 0% contained.

IRWIN

Big Rock mapped at 1,200 acres, 0% contained

Perimeter data
Aug 2

Interagency perimeter data shows the Big Rock at 1,200 acres, 0% contained.

IRWIN

Big Rock mapped at 800 acres

Perimeter data
Aug 1

Interagency perimeter data shows the Big Rock at 800 acres.

IRWIN

Big Rock mapped at 200 acres

Perimeter data
Aug 1

Interagency perimeter data shows the Big Rock at 200 acres.

IRWIN

Timeline

Jul 31Now

102 days since discovery

Other Fires in Idaho

1 other active fire

Idaho wildfire map: every fire burning in the state and the past year's fires. Planning a trip? Idaho 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: 0bb99778-8d64-476c-ba6a-bc8006391084

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.