What are the names and locations of the wildfires?
As of September 12, 2025, two wildfires are burning north of Boise are affecting air quality in parts of Idaho and Montana.
The Rock Fire is mostly contained in Adams and Valley Counties, Idaho and has burned 2,813 acres (1). The fire is located near the Boise National Forest and is impacting areas around Tamarack, Donnelly, and the Upper French Creek Campground, which is currently closed due to the fire. The fire’s proximity to these communities and recreational areas is a significant concern for both residents and visitors.
The Elkhorn Fire has burned 1,779 acres and is active south of the Middle Fork of the Salmon River (2). While extremely remote from populated areas, smoke from the fire is likely impacting air quality in Idaho and Montana communities.
Which cities or areas are affected by the wildfires?
The towns of Donnelly and Tamarack, Idaho are most immediately impacted by the Rock Fire; the Elkhorn Fire is more remote. However, wildfire smoke can be carried for miles; poor air quality in several towns in Idaho may be affected by these and other local fires:
What is the current containment status of the wildfires?
As of September 12, the Rock Fire is 98% contained and the Elkhorn Fire is 0% contained.
Firefighters are actively engaged in containment and mop-up operations, focusing on securing the perimeter and preventing further spread. Crews are deploying hoselay, constructing handlines, and conducting firing operations to strengthen containment lines. Progress is being made, but the challenging terrain and dry conditions continue to pose significant obstacles to full containment (3).
Protect yourself from wildfire smoke
See how a wildfire smoke air purifier can help clean your air.
How can I protect myself from wildfire smoke?
Always plan ahead to protect yourself from wildfire smoke.
- Get a free air quality app for real-time air quality alerts and forecasts.
- Shut doors and windows and set the HVAC to recirculate mode.
- Run a high-performance air purifier to filter wildfire smoke.
- Contribute to your community’s outdoor air quality data.
- Stay indoors; if you do need to go outdoors, wear a KN95/FFP2 mask.
As of September 12, 2025, the Rock Fire is 98% contained and the Elkhorn Fire is 0% contained.
