Sarpy
Big Horn, MT · Natural
This fire is no longer active. It burned 897 acres in Big Horn before dropping off the national incident feed.
897
Acres Burned
85
Days Burning
Aug 17, 2026
Discovered
3w ago
Last Update
Growth
No growth in the last day, containment at 80%Public Lands Nearby
4 public land units within 75 miles
Little Bighorn Battlefield National Monument
Check firstMonument / MT
11.6 mi
S
Custer National Forest
Check firstNational Forest / MT
30.5 mi
SW
Bighorn Canyon National Recreation AreaClosures in effect
ClosedRecreation Area / MT
55.2 mi
SW
Farm Service Agency Interest Of Mt
GoWildlife Refuge / MT
74.5 mi
W
Official Park Alerts
Closures and dangers published by the National Park Service
Park Closure / Bighorn Canyon National Recreation Area
No Water Available at Ok-A-Beh Marina - Flushing Restrooms Closed
Due to a water shortage, flushable toilets are currently unavailable at the Ok-A-Beh Marina. Vault toilets are available at the upper parking lot and a floating restroom is available on the courtesy dock.
Situation Updates
Changes read from NIFC interagency perimeter data
Sarpy update: 897 acres, 80% contained
Perimeter dataPer interagency perimeter data, the Sarpy containment moved from 0% to 80%.
IRWINSarpy update: 897 acres, 0% contained
Perimeter dataPer interagency perimeter data, the Sarpy was remapped 3 acres lower to 897.
IRWINSarpy update: 900 acres, 0% contained
Perimeter dataPer interagency perimeter data, the Sarpy grew 400 acres to 900.
IRWINSarpy update: 500 acres
Perimeter dataPer interagency perimeter data, the Sarpy grew 400 acres to 500.
IRWINSarpy mapped at 100 acres
Perimeter dataInteragency perimeter data shows the Sarpy at 100 acres.
IRWINTimeline
85 days since discovery
Other Fires in Montana
2 other active fires
Montana wildfire map: every fire burning in the state and the past year's fires. Planning a trip? Montana national parks guide.
Data Sources
Fire data from NIFC Wildland Fire Interagency Geospatial Services (WFIGS) via IRWIN. Satellite hotspots from NASA FIRMS VIIRS. Situation updates are either posted by the incident management team on InciWeb or read by us from WFIGS perimeter data, and each one says which. Air quality data from EPA AirNow. Public lands boundaries from USGS PAD-US 4.0.
IRWIN ID: 56758ab5-a8f4-486a-b26b-487557aa52e7
Important
More Than Just Parks aggregates third-party data from EPA AirNow, NOAA, NASA FIRMS, and NIFC/WFIGS. Readings can be delayed, estimated, incomplete, or wrong, and conditions on the ground change quickly. This tool is for general information only and is not a substitute for official air quality alerts, fire and evacuation orders, land manager closures, or emergency services. Verify with the managing agency and local authorities before making any travel, health, or safety decision. We make no warranty as to accuracy and accept no liability for decisions made using this information. This is not an emergency or evacuation tool. If you are near a fire, follow official evacuation orders and call 911. Terms of Service.