Idaho · Active · 1,000 acres
Grotto Fire, Idaho
1,000
Acres reported
0%
Contained
+100
Acres since yesterday
Last updated · refreshed every 15 minutes from the NIFC WFIGS feed · awareness only — follow local authorities
Update ·
As of Aug 20, 2026, 01:45 UTC, the Grotto Fire is listed as active at 1,000 acres, 0% contained, in Idaho County, Idaho.
Since Aug 19, 2026, 01:45 UTC: +100 acres, containment unchanged.
Satellites (VIIRS/MODIS) registered 50 heat detections matched to this incident in the last 24 hours, the latest at Aug 19, 2026, 21:39 UTC.
Grotto Fire map
No perimeter has been mapped for this fire yet; the marker is the reported point of origin.
Key facts
- Size
- 1,000 acres
- Containment
- 0%
- Status
- Active
- Discovered
- Jul 29, 2026
- Location
- Idaho County, Idaho
- Origin point
- 46.2559, -115.0937
- Satellite heat, 24 h
- 50 detections
Nearest towns
Distances are from the reported point of origin, not from the fire’s edge.
- Hamilton, MT
- Kamiah, ID
- Stevensville, MT
- Grangeville, ID
- Orofino, ID
Other fires nearby
- Three Links Fire
- Cascade Fire
- Wolf Creek Fire
- Little Weitas Fire
- Moose Mountain Fire
- North Fork Lost Horse Fire
- Moose Butte Fire
- LG13 Appaloosa Fire
Grotto Fire daily history
The largest size and containment reported each UTC day, from our 15-minute archive of the federal feed (first seen Jul 30, 2026, 00:15 UTC).
| Day (UTC) | Reported size | Change | Contained |
|---|---|---|---|
| Aug 20, 2026 | 1,000 acres | +100 | 0% |
| Aug 19, 2026 | 900 acres | 0 | 0% |
| Aug 18, 2026 | 900 acres | 0 | 0% |
| Aug 17, 2026 | 900 acres | 0 | 0% |
| Aug 16, 2026 | 900 acres | 0 | — |
| Aug 15, 2026 | 900 acres | 0 | — |
| Aug 14, 2026 | 900 acres | 0 | — |
| Aug 13, 2026 | 900 acres | +457 | — |
| Aug 12, 2026 | 443 acres | 0 | — |
| Aug 11, 2026 | 443 acres | 0 | — |
| Aug 10, 2026 | 443 acres | +423 | — |
| Aug 9, 2026 | 20 acres | 0 | — |
| Aug 8, 2026 | 20 acres | 0 | — |
| Aug 7, 2026 | 20 acres | 0 | — |
| Aug 6, 2026 | 20 acres | +20 | — |
| Aug 3, 2026 | 0.3 acres | 0 | — |
| Aug 2, 2026 | 0.3 acres | 0 | — |
| Aug 1, 2026 | 0.3 acres | 0 | — |
| Jul 31, 2026 | 0.3 acres | 0 | — |
| Jul 30, 2026 | 0.3 acres | — | — |
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Grotto Fire questions, answered from the data
How big is the Grotto Fire?
As of Aug 20, 2026, 01:45 UTC, the Grotto Fire is reported at 1,000 acres. Since Aug 19, 2026, 01:45 UTC: +100 acres, containment unchanged.
Is the Grotto Fire contained?
Not fully. It was 0% contained as of Aug 20, 2026, 01:45 UTC. Containment is the share of the fire's edge that has a control line; it is reported by the incident team and can lag the ground situation.
Where is the Grotto Fire?
The reported point of origin is at 46.2559, -115.0937 in Idaho County, Idaho. Nearest towns: Hamilton (45 mi E), Kamiah (45 mi W), Stevensville (51 mi E).
Is the Grotto Fire still burning?
The federal feed still lists it as active as of Aug 20, 2026, 01:45 UTC, and satellites registered 50 heat detections matched to it in the last 24 hours.
Where do I find evacuation orders for the Grotto Fire?
From the county sheriff and local emergency management, not from this site. Check the official Idaho sources on our Idaho page and your county’s alert system. FireRiskHere is for awareness only.
How current is this page?
The numbers come from the National Interagency Fire Center's WFIGS incident feed and the WFIGS perimeter service, refreshed every 15 minutes, plus NASA FIRMS satellite detections hourly. This page was last updated Aug 20, 2026, 01:45 UTC. Acreage and containment are what the incident team reports and can lag by hours.
About this page
This page is generated automatically for every wildfire whose reported size reaches 1,000 acres, from FireRiskHere’s archive of the National Interagency Fire Center’s WFIGS incident feed (captured every 15 minutes), the WFIGS interagency perimeter service, and NASA FIRMS satellite detections. It stays online after the fire is contained as a record of the incident. Nothing here is an official notice — for evacuation orders and road closures follow your county sheriff and local emergency management. How the site works →