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Active

Grotto

Idaho, ID ยท Undetermined

Containment is progressing at 50%. Nearby public lands may be open, but verify conditions before you go.

0%Progressing

3,856

Acres Burned

58

Days Burning

Jul 29, 2026

Discovered

3d ago

Last Update

Growth

No growth in the last day, containment at 50%
Aug 3 / 0 acresSep 22 / 3,856 acres

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Threatened Public Lands

11 public land units within 75 miles

Selway-Bitterroot Wilderness

Check first

Wilderness / ID

16.7 mi

SE

Clearwater National Forest

Check first

National Forest / ID

20.9 mi

N

Nezperce National Forest

Check first

National Forest / ID

32.6 mi

SW

Bitterroot National Forest

Check first

National Forest / MT

48.8 mi

E

Lee Metcalf National Wildlife Refuge

Check first

Wildlife Refuge / MT

52.6 mi

NE

Gospel-Hump Wilderness

Check first

Wilderness / ID

57.1 mi

SW

Aerial Fire Depot Other

Check first

National Forest / MT

66.2 mi

NE

Frank Church-River of No Return Wilderness Area

Go

Wilderness / ID

68.1 mi

SW

Lolo National Forest

Check first

National Forest / MT

68.8 mi

NE

Welcome Creek Wilderness

Check first

Wilderness / MT

69 mi

E

St. Joe National Forest

Check first

National Forest / ID

69.7 mi

NW

Situation Updates

Changes read from NIFC interagency perimeter data

Grotto update: 3,856 acres, 50% contained

Perimeter data
Sep 22

Per interagency perimeter data, the Grotto containment moved from 20% to 50%.

IRWIN

Grotto update: 3,856 acres, 20% contained

Perimeter data
Sep 15

Per interagency perimeter data, the Grotto containment moved from 0% to 20%.

IRWIN

Grotto update: 3,856 acres, 0% contained

Perimeter data
Sep 8

Per interagency perimeter data, the Grotto grew 7 acres to 3,856.

IRWIN

Grotto update: 3,849 acres, 0% contained

Perimeter data
Aug 31

Per interagency perimeter data, the Grotto grew 678 acres to 3,849.

IRWIN

Grotto update: 3,171 acres, 0% contained

Perimeter data
Aug 28

Per interagency perimeter data, the Grotto grew 1,971 acres to 3,171.

IRWIN

Grotto update: 1,200 acres, 0% contained

Perimeter data
Aug 27

Per interagency perimeter data, the Grotto grew 38 acres to 1,200.

IRWIN

Grotto update: 1,162 acres, 0% contained

Perimeter data
Aug 25

Per interagency perimeter data, the Grotto grew 257 acres to 1,162.

IRWIN

Grotto update: 905 acres, 0% contained

Perimeter data
Aug 21

Per interagency perimeter data, the Grotto was remapped 95 acres lower to 905.

IRWIN

Grotto update: 1,000 acres, 0% contained

Perimeter data
Aug 20

Per interagency perimeter data, the Grotto grew 100 acres to 1,000.

IRWIN

Grotto update: 900 acres, 0% contained

Perimeter data
Aug 13

Per interagency perimeter data, the Grotto grew 457 acres to 900.

IRWIN

Grotto update: 443 acres, 0% contained

Perimeter data
Aug 10

Per interagency perimeter data, the Grotto grew 423 acres to 443.

IRWIN

Grotto mapped at 20 acres, 0% contained

Perimeter data
Aug 6

Interagency perimeter data shows the Grotto at 20 acres, 0% contained.

IRWIN

Timeline

Jul 29Now

58 days since discovery

Other Fires in ID

5 additional active fires

Cascade

Idaho, ID

7.5K acres

80%

Moose Mountain

Clearwater, ID

5.8K acres

90%

Upper Smith

Boundary, ID

4.8K acres

41%

Wolf Creek

Idaho, ID

2.6K acres

70%

Silver

Boundary, ID

2.6K acres

30%

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: 687d3124-6031-4c95-b574-6afb110fd389

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.