"This fire is notable for its rapid growth and the significant resources committed to contain it, with over 2,500 personnel and estimated costs exceeding $4 million."
A wildfire, MM115 HWY 20, is burning in Elmore County, Idaho, approximately 12 miles northeast of Mountain Home. The fire was caused by human activity and has been active with flanking and backing behavior, with periods of wind-driven runs and moderate to minimal fire behavior. The fire has grown significantly, from 150 acres on August 7 to 5,070.4 acres on August 13, with containment increasing from 0% to 100% over the same period. The fire has required significant personnel and resources, with estimated costs ranging from $400,000 to $4.6 million.
Official source description: 12 Miles NE from MOUNTAIN HOME, ID
Minimal; Creeping; Isolated Torching
Moderate air quality. Unusually sensitive individuals should consider reducing prolonged outdoor exertion.
Nearest reporting station: Idaho City. Source: AirNow.gov (EPA).
Given the fire's current minimal creeping behavior and 100% containment, general wildfire safety guidance applies. However, it is essential to remain vigilant and follow local authorities' instructions, as conditions can change rapidly.
IRWIN ID: {DEEF5557-EDDB-4387-AAC1-0F4F16DD2169}
Discovered: Aug 7, 2026
Cause: Human
Est. Cost to Date: $4,600,000
Coordinates: 43.302, -115.447
Other wildfires that have recently been contained or dropped from official tracking in ID.
The MM115 HWY 20 Fire has burned 5,070 acres as of August 13, 2026.
Yes, the MM115 HWY 20 Fire is fully contained (100%).
The official cause has been listed as: Human.
The MM115 HWY 20 Fire is burning in Elmore, ID.
No, the MM115 HWY 20 Fire is no longer listed as active by NIFC.
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