"The fire’s rapid early growth and the substantial resources—over 80 personnel and a $300,000 cost—highlight the operational challenges faced by responders. Its full containment within a week demonstrates effective management of a moderate‑behaving wildfire."
The Middle Ridge wildfire, located in Union County, Oregon, was first discovered on August 22, 2026, and remains active as of the latest update. The fire grew rapidly from 25 acres on August 23 to a peak of 150 acres by August 24, then stabilized around 138 acres thereafter. Containment efforts began on August 24 with 81 personnel and a moderate, backing, creeping fire behavior, achieving 30% containment by August 26 and 50% by August 27. By August 28, containment reached 75% with 52 personnel, and the fire was fully contained at 100% on August 29 with 31 personnel on the scene. The cause remains undetermined and the jurisdictional agency is not specified. The incident cost is estimated at $450,000.
Official source description: 4 Miles W from Elgin, OR
Minimal; Flanking; Creeping
Good air quality. Outdoor activity is generally safe near this incident.
Nearest reporting station: La Grande. Source: AirNow.gov (EPA).
The fire is now fully contained and exhibits minimal behavior; standard wildfire safety precautions remain advised for the surrounding area.
IRWIN ID: {2088689D-42B8-4A31-85B6-2CADB59BA127}
Discovered: Aug 22, 2026
Cause: Undetermined
Est. Cost to Date: $450,000
Coordinates: 45.5804, -118.0211
Other wildfires that have recently been contained or dropped from official tracking in OR.
The Middle Ridge Fire has burned 138 acres as of August 29, 2026.
Yes, the Middle Ridge Fire is fully contained (100%).
The official cause has been listed as: Undetermined.
The Middle Ridge Fire is burning in Union, OR.
No, the Middle Ridge Fire is no longer listed as active by NIFC.
Real-time map, acreage, and containment for every major U.S. wildfire, updated from official NIFC data.
View Live Map →