"The fire’s rapid growth within a short period highlights the potential for escalation, warranting attention from local authorities and the public. Its continued expansion underscores the need for monitoring and potential resource allocation."
The Mill Run wildfire was discovered on September 17, 2026, near Box Elder County, Utah, and has expanded from 20 acres to 33.29 acres by September 18, 2026. The cause remains undetermined and no jurisdictional agency has been identified. Fire behavior and containment data are not yet available, indicating the incident is still in its early stages. Over the course of the first 24 hours, the fire grew by approximately 13.29 acres, showing a moderate rate of expansion. As of the latest update, the incident remains active with no reported containment or personnel deployment.
Good air quality. Outdoor activity is generally safe near this incident.
Nearest reporting station: Brigham City. Source: AirNow.gov (EPA).
General wildfire safety guidance applies: stay informed through local alerts, avoid the area if possible, and be prepared to evacuate if conditions worsen.
IRWIN ID: {2F042ADF-28AE-4BA5-BC0E-56EF826F290D}
Discovered: Sep 17, 2026
Cause: Undetermined
Coordinates: 41.5705, -112.102
Other wildfires that have recently been contained or dropped from official tracking in UT.
The Mill Run Fire has burned 33 acres as of September 18, 2026.
The Mill Run Fire has not yet reached any official containment.
The official cause has been listed as: Undetermined.
The Mill Run Fire is burning in Box Elder, UT.
Yes, as of the latest official update, the Mill Run Fire remains active.
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