"This incident is notable for its rapid containment—reaching 98% within a day of discovery—and for the consistent minimal fire behavior despite a prolonged period of monitoring. The USFS’s efficient use of a small crew and the absence of evacuation or significant cost escalation highlight effective wildfire management in this region."
The Horse Ridge wildfire, located 25 miles east of Pendleton in Umatilla County, Oregon, was discovered on July 16, 2026, and is a natural fire under USFS jurisdiction. By August 6, it had burned 860 acres and was 98% contained, with minimal fire behavior and four personnel on the scene. Subsequent daily reports through September 15 showed no change in acreage or containment, with the fire remaining minimal, smoldering, and backing, and the estimated cost fluctuating slightly from $3,312,086 to $2,678,959. The fire was fully contained on September 15, 2026, with no further activity reported.
Official source description: 25 Miles E from Pendleton, OR
Minimal; Smoldering; Backing
Good air quality. Outdoor activity is generally safe near this incident.
Nearest reporting station: La Grande. Source: AirNow.gov (EPA).
The fire is fully contained and exhibits minimal behavior; standard wildfire safety precautions remain advised, but no immediate action is required for the surrounding area.
IRWIN ID: {59D0CCBA-067C-4422-8FD0-07F3EAB5581B}
Discovered: Jul 16, 2026
Cause: Natural
Managing Agency: USFS
Est. Cost to Date: $2,678,959
Coordinates: 45.5418, -118.346
Other wildfires that have recently been contained or dropped from official tracking in OR.
The Horse Ridge Fire has burned 860 acres as of September 15, 2026.
Yes, the Horse Ridge Fire is fully contained (100%).
The official cause has been listed as: Natural.
The Horse Ridge Fire is burning in Umatilla, OR.
Yes, as of the latest official update, the Horse Ridge Fire remains active.
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