Grotto Fire
Active
Idaho County, Idaho · Discovered July 29, 2026
Source: NIFC/IRWIN (interagency) · Last upstream update 4 days ago · Perimeter mapped 4 days ago (NIFC WFIGS)
Grotto Fire
The Grotto Fire fire has burned 3,856 acres in Idaho County, Idaho. Crews have reached 50% containment. It has shown no measurable growth in the last 24 hours. Wind at the fire is blowing 5 mph toward the E, with gusts to 16 mph. Air quality near the fire is good (AQI 35). 1 personnel are assigned to the incident.
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Incident timeline
Generated automatically from official feeds the moment they change: size, containment, evacuation zones, aircraft, and incident team updates.
Containment rose to 50%
4 days ago · September 22, 2026Containment rose to 20%
11 days ago · September 15, 2026New perimeter mapped at 3,856 acres (national perimeter feed)
17 days ago · September 8, 2026Grew 678 acres in 4 days to 3,849 acres
25 days ago · August 31, 2026Grew 2,009 acres in 2 days to 3,171 acres
29 days ago · August 28, 2026Grew 162 acres in 6 days to 1,162 acres
31 days ago · August 25, 2026Grew 100 acres in 6 days to 1,000 acres
37 days ago · August 19, 2026Grew 350 acres in about an hour to 900 acres
43 days ago · August 13, 2026Grew 107 acres in 2 days to 550 acres
43 days ago · August 13, 2026Fire first reported in official feeds at 443 acres
46 days ago · August 11, 2026
Raw growth & containment readings
| Recorded | Size | Contained |
|---|---|---|
| 9/22/2026, 2:36:27 PM | 3,856 acres | 50% |
| 9/15/2026, 2:31:05 PM | 3,856 acres | 20% |
| 9/8/2026, 4:26:28 PM | 3,856 acres | 0% |
| 8/31/2026, 9:05:45 PM | 3,849 acres | 0% |
| 8/28/2026, 12:19:19 AM | 3,171 acres | 0% |
| 8/27/2026, 5:48:52 PM | 1,200 acres | 0% |
| 8/25/2026, 8:30:52 PM | 1,162 acres | 0% |
| 8/21/2026, 8:42:47 PM | 905 acres | 0% |
| 8/19/2026, 11:56:42 PM | 1,000 acres | 0% |
| 8/13/2026, 5:37:09 PM | 900 acres | 0% |
| 8/13/2026, 4:22:07 PM | 550 acres | 0% |
| 8/11/2026, 2:04:22 PM | 443 acres | 0% |
Recorded by Fire Nearby each time upstream data changes.
About this data
Fire Nearby aggregates official incident data and shows exactly when each value was last updated. For evacuation decisions, always follow instructions from local emergency officials and check county emergency management channels.