The section of trail from Narada Falls to Stevens Canyon Road has since reopened, the National Park Service said.
Park officials say visitors should keep their distance from black bears, never run and fight back if attacked.
Mount Rainier National Park released a statement on the matter Thursday.
Mount Baldy firefighters survey the damage to cabins from the Bridge fire along Bear Canyon Road. (Genaro Molina / Los Angeles Times) As the Bridge fire spread from the East Fork of the San Gabriel ...