"The fire’s rapid growth and extreme behavior early on required significant resources, but the swift containment progress demonstrates effective firefighting efforts in a human‑caused incident."
The BISON wildfire, located 9 miles south of Elgin in Osage County, Oklahoma, was first reported on August 21, 2026, and is caused by human activity. The fire rapidly expanded from 700 acres to 889 acres by August 23, reaching 30% containment with 21 personnel on the scene. Over the next week, containment improved steadily—45% by August 24, 50% by August 26, and 85% by August 29—while the fire behavior shifted from extreme running to minimal smoldering. By September 1, the blaze was fully contained at 889 acres with a final estimated cost of $30,000 and only four personnel remaining on the scene.
Official source description: 9 Miles S from Elgin, OK
Minimal; Running; Flanking
Good air quality. Outdoor activity is generally safe near this incident.
Nearest reporting station: Tulsa. Source: AirNow.gov (EPA).
The fire is now fully contained and behavior is minimal; standard wildfire safety precautions remain advised in the area.
IRWIN ID: {9AA57A53-4869-4D98-8D47-A5E6E3B101CF}
Discovered: Aug 21, 2026
Cause: Human
Est. Cost to Date: $30,000
Coordinates: 36.877, -96.3385
Other wildfires that have recently been contained or dropped from official tracking in OK.
The BISON Fire has burned 889 acres as of September 1, 2026.
Yes, the BISON Fire is fully contained (100%).
The official cause has been listed as: Human.
The BISON Fire is burning in Osage, OK.
Yes, as of the latest official update, the BISON Fire remains active.
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