2026 Big Horn County, Montana Wildfires
Newest wildfires in Big Horn County
Largest wildfires in Big Horn County this season
All 2026 Big Horn County Fires · 6 fires
A fire is listed here when it is located in Big Horn County. Each complex is counted once, through its parent: the parent carries the complex's acres, and its member fires are listed beneath it without being counted again. A fire that crossed a county line is listed with the acres that burned in Big Horn County, not its whole reported size. A fire located elsewhere that burned into Big Horn County is listed too, at its Big Horn County acres, and is not added to the Big Horn County fire counts. County lines come from a different boundary dataset than state lines, so Big Horn County's acres are counted along county lines and can differ a little at the edges from the figures on the state page.
| Fire | Start date | Containment | Status | Acres | Center | Ignition point |
|---|---|---|---|---|---|---|
| Davis Coulee Fire | Sep 14, 2026 | 100% | Inactive | 15,470 | 45.4710, -107.4917 | 45.5398, -107.6275 |
| Hwy 91 Inc 964 Fire | Jul 31, 2026 | 100% | Inactive | 361 | 45.4149, -108.4052 | 45.4220, -108.4232 |
| Coal Seam Fire | Aug 23, 2026 | — | Inactive | 30 | 45.6226, -106.8867 | 45.6350, -106.8734 |
| North Sarpy Fire | Jul 20, 2026 | — | Inactive | 20 | 45.6619, -107.0123 | 45.6626, -107.0116 |
| Fly Creek 2 Fire | Jul 19, 2026 | — | Inactive | 20 | 45.8829, -108.0001 | 45.8802, -107.9994 |
| Mine Fire | Aug 5, 2026 | — | Inactive | 10 | 45.0702, -106.8170 | 45.0734, -106.8153 |
| Also burned into Big Horn County | ||||||
| East Fork Creek Fire from Yellowstone County | Aug 3, 2026 | — | Inactive | 61 of 248 | 45.4648, -108.4017 | 45.5025, -108.4234 |
| Harris Fire from Rosebud County | Aug 9, 2026 | 60% | Inactive | 9 of 924 | 45.1894, -106.6336 | 45.1932, -106.6324 |
| Totals | 2026 Season Fires 6 | Active Fires 0 | Acres Burning 0 | 2026 Season Acres 15,981 | ||
Land cover · Big Horn County 2026
Burned acres in Big Horn County for the 2026 season, split by the kind of land that burned. Each figure counts the LANDFIRE 30 m cells inside a fire's latest mapped perimeter. The Fires tab carries the reported season acreage.
Forest ownership · Big Horn County 2026
Burned forest acres in Big Horn County for the 2026 season, split by who owns the land. Owners are mapped for forestland, so every figure here counts burned cells whose LANDFIRE lifeform is Tree. The Fires tab carries the season acreage this site reports.
Burn severity · Big Horn County 2026
Burned acres in Big Horn County for the 2026 season, split by how severely each cell of ground burned. Each figure counts the 30 m cells inside a fire's latest mapped perimeter, measured from satellite imagery. The Fires tab carries the reported season acreage.
Severity comes from the differenced normalized burn ratio (dNBR), the same index the federal burn severity programs publish, classified with the standard thresholds.
This is an initial assessment. Trees keep dying for months after a burn, so severity in forest reads conservative until the official assessments arrive after the season.