Old 66 Wildfire Grows to 3,668 Acres in New Mexico
The Old 66 wildfire in New Mexico has expanded to 3,668 acres, according to the National Interagency Fire Center.
3 reports on this incident · first at Sep 7, 2026, 6:01 p.m. ET
Fire size and containment change through the day and the earliest figures are the least certain. Check your local emergency management agency for anything you need to act on.
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Earlier reports
Sep 7, 2026, 6:23 p.m. ET
Old 66 Wildfire in New Mexico 99% Contained, Cause Undetermined
Crews report the Old 66 wildfire in New Mexico is 99% contained, according to the National Interagency Fire Center. Containment refers to the percentage of the fire's perimeter that has been secured by fireline, not the fire being out.
The fire, which was discovered on March 27, 2026, has burned 3,668 acres and is classified as a Type 4 Incident. Fire behavior is described as minimal. The cause of the fire has not been determined.
Sep 7, 2026, 6:01 p.m. ETFirst report
Old 66 Wildfire in New Mexico 99% Contained, Cause Undetermined
The Old 66 wildfire in New Mexico has burned 3,668 acres and is 99% contained, according to the National Interagency Fire Center. The fire was discovered on March 27, 2026, and is classified as a Type 4 Incident with minimal fire behavior.
The cause of the fire has not been determined. The National Interagency Fire Center lists the fire as active, and no containment figure has been reported beyond the 99% containment stated.
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Revision history
- Version 17 Sept 2026, 22:23current
First published.
- Version 17 Sept 2026, 22:54current
First published.
- Version 17 Sept 2026, 22:01current
First published.
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