"The rapid containment of a 341‑acre fire in a populated county demonstrates effective resource deployment and highlights the importance of early detection and swift response."
The CHILENO wildfire, located 9 miles east of Tomales in Marin County, California, was discovered on September 21, 2026, and remains active. The fire has burned 341 acres and is currently 95% contained, with minimal fire behavior reported. Over the course of the first four days, containment rose from 5% to 95% while the acreage remained steady, indicating effective suppression efforts. The cause is undetermined and jurisdictional agency information is not provided. Personnel deployed have decreased from 110 to 8 as containment improved, and the estimated cost remains $500,000.
Official source description: 9 Miles E from TOMALES, CA
Minimal
Good air quality. Outdoor activity is generally safe near this incident.
Nearest reporting station: Santa Rosa. Source: AirNow.gov (EPA).
With the fire now minimally active and largely contained, standard wildfire safety precautions remain advised, especially for nearby residents and visitors.
IRWIN ID: {DF96EDA9-9B27-47FB-86D5-DFB97A879A22}
Discovered: Sep 21, 2026
Cause: Undetermined
Est. Cost to Date: $500,000
Coordinates: 38.2131, -122.8122
Other wildfires that have recently been contained or dropped from official tracking in CA.
The CHILENO Fire has burned 341 acres as of September 24, 2026.
As of the latest update, the CHILENO Fire is 95% contained.
The official cause has been listed as: Undetermined.
The CHILENO Fire is burning in Marin, CA.
Yes, as of the latest official update, the CHILENO Fire remains active.
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