Feed checks and source-record updates do not necessarily mean fire conditions changed. Figures below reflect the last recorded incident report.
Automated summary generated: Oct 26, 2026 20:05 UTC. It may lag behind the report and is not an official alert.
The MAMMOTH wildfire, located in Modoc County, California, was discovered on July 25, 2025, and is caused by natural factors. The U.S. Forest Service (USFS) is the jurisdictional agency overseeing the incident. As of the latest update on October 26, 2026, the fire has burned 2,533 acres and is 100% contained, with 67 personnel deployed. The fire behavior is described as minimal, smoldering, and isolated torching, indicating that the fire has been effectively controlled. Over the course of the timeline, the fire grew to its current size but has since been fully contained, with no further expansion reported.
Official source description: 3 Miles N from Tionesta, CA
Minimal; Smoldering; Isolated Torching
Good air quality at the reporting station. AQI does not assess fire danger, road access or evacuation status.
Reporting area: Not reported. Source: AirNow.gov (EPA).
Observed: 2026-10-27 00:00:00 UTC Β· Site: Klamath Falls - Peterson School.
Any automated community or travel summary below may be outdated. It is not a live evacuation or road-closure notice.
Verify evacuation orders, closures and access with the responsible fire agency, county emergency management or sheriff. A containment percentage, feed status or AQI reading does not establish that an area is safe to enter.
NIFC fire information and official resources βIRWIN ID: {BC76BC01-A70B-4C29-A576-AB0D2DC49640}
Discovered: Jul 25, 2025
Cause: Natural
Managing Agency: USFS
Est. Cost to Date: $1,000,000
Coordinates: 41.6841, -121.3239
Other wildfires no longer present in our filtered incident feed in CA.
The MAMMOTH Fire has burned 2,533 acres as of October 26, 2026.
Yes, the MAMMOTH Fire is fully contained (100%).
The official cause has been listed as: Natural.
The MAMMOTH Fire is burning in Modoc, CA.
The MAMMOTH Fire currently meets our U.S. incident tracking criteria. This does not confirm current fire behavior.
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