Horse Fire
The Horse Fire was reported on June 13, 2025 in Sublette County, Wyoming and burned 2,802 acres. It was declared out on December 2, 2025. The cause is listed as natural.
- Size
- 2,802 acres
- Contained
- 100%
- Discovered
- June 13, 2025
- Personnel
- 12
Map
Perimeter mapped March 9, 2026 at 11:36 AM MDT, 2,797 acres (mixed methods). Point of origin 42.900, -110.529.
The incident
- Size
- 2,802 acres
- Containment
- 100%
- Discovered
- June 13, 2025 at 10:32 AM MDT
- Contained
- July 24, 2025 at 6:00 PM MDT
- Controlled
- September 26, 2025 at 3:44 PM MDT
- Declared out
- December 2, 2025 at 12:37 PM MST
- Cause
- Natural
- Location
- 7 Miles W from Merna, WY
- County
- Sublette County
- State
- Wyoming
- Protecting agency
- USFS
- Jurisdiction
- USFS
- Land ownership at origin
- USFS
- Personnel assigned
- 12
- Incident management
- Type 4 IC, Type 4 Incident
- Primary fuel
- Timber (Litter and Understory)
- Estimated cost to date
- $5,000,000
- Incident type
- Wildfire
- Unique fire identifier
- 2025-WYBTF-002501
- IRWIN identifier
- BC3833BD-6DDA-413E-837F-B09A4460C9A2
Growth
Mapped area at the last perimeter of each day, from June 14, 2025 (773 acres) to March 9, 2026 (2,797 acres). The largest one-day growth was 454 acres, mapped June 18, 2025.
| Day | Acres | Change |
|---|---|---|
| June 14, 2025 | 773 | |
| June 15, 2025 | 898 | +125 |
| June 16, 2025 | 899 | +1 |
| June 18, 2025 | 1,353 | +454 |
| June 19, 2025 | 1,465 | +112 |
| June 20, 2025 | 1,857 | +392 |
| June 21, 2025 | 1,994 | +137 |
| June 22, 2025 | 2,251 | +257 |
| June 25, 2025 | 2,321 | +70 |
| June 27, 2025 | 2,671 | +350 |
| June 28, 2025 | 2,671 | 0 |
| June 29, 2025 | 2,677 | +6 |
| July 1, 2025 | 2,795 | +118 |
| March 9, 2026 | 2,797 | +2 |
Weather in the area
This fire is no longer listed as current. The forecast for Star Valley Ranch, WY covers the area today.
Nearby
Wyoming wildfires today Wildfires of 2025 All current fires
Incident record from the National Interagency Fire Center’s Wildland Fire Interagency Geospatial Services (WFIGS), as the incident’s managers report it; last updated March 9, 2026 at 11:36 AM MDT. Identifier 2025-WYBTF-002501.