Union Fire
The Union Fire burned 10,527 acres in Ada County, Idaho, in 2011. It was discovered on August 15, 2011, and contained on August 16, 2011. The cause was recorded as natural.
- Size
- 10,527 acres
- Discovered
- August 15, 2011
- Contained
- August 16, 2011
- Cause
- Natural
Map
The burned area boundary MTBS mapped from Landsat imagery, 13,083 acres. Point of origin as reported, 43.364, -116.129.
The record
- Reported final size
- 10,527 acres
- Burned area mapped by MTBS
- 13,083 acres
- Area inside the final perimeter
- 10,533 acres
- Discovered
- August 15, 2011, 12:33 a.m. local time
- Contained
- August 16, 2011, 9:30 p.m. local time
- Cause
- Natural
- State
- Idaho
- County
- Ada County
- Land ownership at origin
- Bureau of Land Management
- Reporting unit
- Boise District
- Agency
- Bureau of Land Management
- Unit
- IDBOD
- Other fire reports inside the burned area
- East, Power
- Incident type
- Wildfire
- Unique fire identifier
- 2011-IDFRD-000550
- MTBS fire identifier
- ID4336611612920110815
- MTBS assessment
- Initial
- Fire occurrence record
- W-627372
- Perimeter map method
- GPS-Flight
The three sizes are three measurements: the size the agency reported when the fire was out, the burned area MTBS drew from satellite imagery before and after, and the GIS area inside the final perimeter, unburned islands included. They rarely agree exactly.
Other large fires in Idaho in 201112
| Fire | Acres | Start | Cause |
|---|---|---|---|
| Big Hill Fire | 67,061 | Aug 14, 2011 | Natural |
| T17 Fire | 50,176 | Aug 25, 2011 | |
| Blair Fire | 39,577 | Aug 14, 2011 | Natural |
| Saddle Complex | 32,670 | Aug 10, 2011 | Natural |
| Salt Fire | 24,501 | Aug 25, 2011 | Natural |
| Grindstone Fire | 21,604 | Oct 1, 2011 | Natural |
| Windmill Fire | 17,382 | Aug 4, 2011 | Natural |
| Southsim Fire | 15,775 | Aug 15, 2011 | Human |
| Double A Fire | 13,131 | Aug 4, 2011 | Natural |
| Hot Springs 2 Fire | 10,394 | Oct 1, 2011 | Natural |
| East Fork Fire | 10,000 | Aug 10, 2011 | Natural |
| Dead Horse Cave Fire | 6,963 | Aug 4, 2011 | Natural |
Nearby
Sources
Perimeters from the National Interagency Fire Center’s Interagency Fire Perimeter History, compiled from the Forest Service, BLM, BIA, Fish and Wildlife Service, National Park Service, the Alaska Interagency Fire Center and CAL FIRE. Burned areas and ignition dates from Monitoring Trends in Burn Severity (MTBS), a program of the US Geological Survey and the USDA Forest Service. Fire reports from Short, Karen C. 2022, Spatial wildfire occurrence data for the United States, 1992-2020 [FPA_FOD_20221014], 6th Edition, Forest Service Research Data Archive, doi.org/10.2737/RDS-2013-0009.6. Records before 2014 were joined by this site: a fire report to the burned area its MTBS identifier names, a perimeter to the burned area it lies in when the names or the sizes agree.