"This fire is notable for its rapid expansion—over 30,000 acres within a month—and the substantial resources committed, with personnel numbers exceeding 600 at peak. The high estimated cost and prolonged containment timeline underscore its significant impact on local communities and forest management resources."
The Sand Creek wildfire, located in Beaverhead County, Montana, was first discovered on August 1, 2026. By the latest NIFC update on September 7, 2026, the fire had expanded to 35,509 acres and was 36% contained, with 306 personnel actively managing the blaze. The incident began at 1,684 acres with no containment, then grew rapidly—reaching 27,576 acres by August 13 and peaking at 34,083 acres on August 30—before stabilizing around 34,500 acres. Throughout the timeline, the fire’s behavior shifted from active, wind‑driven runs and spotting to moderate and minimal phases, with periods of flanking, backing, and group torching. The United States Forest Service (USFS) remains the primary jurisdictional agency, and the estimated cost has climbed from $178,863 on August 7 to $30,851,651 by September 7.
Official source description: 5 Miles E from Wisdom, MT
Minimal; Backing; Creeping; Smoldering
Good air quality. Outdoor activity is generally safe near this incident.
Nearest reporting station: Salmon. Source: AirNow.gov (EPA).
Given the current minimal fire behavior and 36% containment, general wildfire safety guidance applies: stay informed of local advisories, avoid outdoor activities in the fire’s vicinity, and be prepared to evacuate if conditions change.
IRWIN ID: {84FD3D7E-6B04-49CD-A729-ED3178A49C42}
Discovered: Aug 1, 2026
Cause: Undetermined
Managing Agency: USFS
Est. Cost to Date: $34,312,350
Coordinates: 45.5547, -113.3257
Other wildfires that have recently been contained or dropped from official tracking in MT.
The Sand Creek Fire has burned 35,520 acres as of September 15, 2026.
As of the latest update, the Sand Creek Fire is 58% contained.
The official cause has been listed as: Undetermined.
The Sand Creek Fire is burning in Beaverhead, MT.
Yes, as of the latest official update, the Sand Creek Fire remains active.
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