Boise National Forest Spokesman Dave Olson says the forest is seeking public help in finding the person responsible for tossing a burning cigarette that ignited the so-called Frasier Fire.
The wildfire started Sunday near county highway 17 about five miles east of the small town of Banks. As it grew, more than 150 firefighters were deployed to put it out and prevent it from moving into a subdivision near the Payette River.
Olson says anyone traveling the roadway on July 7 and has information is asked to contact investigators.
The fire was contained Wednesday.