Prescribed Fire Information

Field	Value
Burn ID	103019635
Burn Date	Oct. 17, 2023
Air District	Mariposa County APCD
County	Mariposa
Air Basin	Mountain Counties
Acres Requested	22.0
Acres Burned	22.0
Latitude	37.719
Longitude	-119.651
Legal Location	T02S R21E 33,34
Agency	National Park Service
LMAUnit	Yosemite National Park
LMAName	Kelly Martin
SMP	Yosemite Central Broadcast
Burn Unit	Yosemite Valley (Unit: YV-4)
Burn Type	Broadcast
Fuel Type	Natural
Unit Acres	22
Tons Per Acre	0.19
Total Tons	4.18
Crossroads	Southside Drive
Slope	0-30
Aspect	NW
Min Elevation	4050
Max Elevation	3950
Unit Description	This 22-acre unit is located north of Bridalveil creek in Yosemite Valley. It is bordered by YV2, YV3, YV5, & YV7. The Merced River runs along the southern boundary and Northside Drive along the northern boundary. There are no natural or manmade boundaries that divide YV4 & YV7.
Burner Comments
Mitigtations	Total unit acreage is 150 spread between the Yosemite Valley unit and Crane Flat unit. Units will be burned daily to reduce the amount of smoke impacts to the area. If smoke mitigations are unsuccessful and smoke is settling in the valley impacting smoke sensitive areas and or the surrounding communities, the burn boss will determine if current and predicted weather conditions will remain favorable and continue to meet prescription parameters. If smoke impacts are expected to last for a prolonged duration, the burn boss will consider ceasing firing operations and have all personnel take appropriate actions to secure and hold the burn or adjusting firing tactics to decrease smoke impacts. A fire effects monitor will be onsite monitoring weather, smoke, and fire behavior. There are 3 smoke monitors set up in the valley that will be monitored throughout the burn periods.
Monitored	No