Big Rock Fire
No longer in current feed
Jefferson County, Idaho · Discovered July 31, 2026
Source: NIFC/IRWIN (interagency) · Last upstream update 54 days ago
Big Rock Fire
The Big Rock Fire fire has burned 2,142 acres in Jefferson County, Idaho. It is no longer in the current official feed, so the figures on this page reflect the last data reported. Crews have fully contained the fire. Air quality near the fire is good (AQI 0). 3 personnel are assigned to the incident.
Big Rock Fire size over time
5 official size readingsHolding at 2,142 acres across these reports.
Acreage as reported by the official incident feed, recorded by Fire Nearby each time it changes. Hover or tap the chart for each reading.
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Growth & containment history
Raw growth & containment readings
| Recorded | Size | Contained |
|---|---|---|
| 9/16/2026, 6:31:16 PM | 2,142 acres | 100% |
| 8/13/2026, 10:17:10 PM | 2,142 acres | 100% |
| 8/12/2026, 11:22:03 PM | 2,142 acres | 97% |
| 8/11/2026, 9:55:33 PM | 2,142 acres | 90% |
| 8/11/2026, 2:04:22 PM | 2,142 acres | 85% |
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.