Officials with the Bureau of Land Managment say lightning ignited a wildfire Monday morning north of the Chesterfield Reservoir on the Fort Hall Reservation.
As of Tuesday afternoon, the fire was 2,380 acres in size, but was not threatening any structures and had not prompted any evacuations or closures, officials said.
The fire had spread from the reservation onto private and BLM land, officials said.
“Fire managers report that there is retardant or dozer line around the fire at this time. Winds are starting to pick up, causing the fire to creep through retardant lines,” according to a news release. “Firefighters are working to secure fireline with the help of helicopters and firebosses dropping water.”
Officials said the fire was 50 percent contained on Tuesday and firefighters hoped to have it fully contained by sometime Thursday.