"The fire’s rapid early growth from 10 to 171 acres in just over an hour highlights a potentially aggressive spread, and the continued expansion to 233 acres suggests ongoing activity. The lack of containment data underscores the need for monitoring and potential resource allocation."
The COLORADO wildfire, located in Mariposa County, California, was first discovered on September 1, 2026, at 20:26:20. The Bureau of Indian Affairs (BIA) is the jurisdictional agency, and the cause remains undetermined. According to the National Interagency Fire Center (NIFC) reports, the fire expanded from 10 acres at discovery to 171 acres within the first hour, grew to 232 acres by September 3, and reached 233 acres by September 7, indicating a modest increase of one acre over the last four days. No official containment percentage, personnel deployment, fire behavior, weather conditions, evacuation actions, or cost estimates have been released, so the current status is that the fire is active but its containment progress is unknown.
Unhealthy air quality. Everyone may experience health effects; sensitive groups should avoid outdoor exertion.
Nearest reporting station: Yosemite National Park. Source: AirNow.gov (EPA).
General wildfire safety guidance applies: stay informed through official channels, avoid the area if possible, and be prepared for changing conditions.
IRWIN ID: {B59213CD-2BB2-46AF-B978-67D0C9B23799}
Discovered: Sep 1, 2026
Cause: Undetermined
Managing Agency: BIA
Coordinates: 37.5646, -119.94
Other wildfires that have recently been contained or dropped from official tracking in CA.
The COLORADO Fire has burned 233 acres as of September 7, 2026.
The COLORADO Fire has not yet reached any official containment.
The official cause has been listed as: Undetermined.
The COLORADO Fire is burning in Mariposa, CA.
Yes, as of the latest official update, the COLORADO Fire remains active.
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