Yellowstone National Park officials are taking some precautionary measures but not actively suppressing a fire burning near the Grand Loop Road north of Yellowstone Lake.
The Alum Fire has burned an estimated 4,000 acres in the Mud Volcano vicinity. It's an area that hasn't seen a wildfire in years, including the huge 1988 fires.
The fire is well away from any large visitor areas, but firefighters are being brought in to do structure protection work in Fishing Bridge, Lake Village and Bridge Bay as a precaution.
The main concern now is smoke from the fire possibly hampering visibility on the lower, east section of Grand Loop Road.
Several other fires are burning in remote areas of Yellowstone and pose no danger although they are sending up a lot of smoke.