The Wallowa-Whitman National Forest is discouraging drivers from traveling a roughly 10-mile section of Forest Road 73, the Elkhorn Drive Scenic Byway, near the Badger Butte 2 fire about four miles southwest of Anthony Lakes.
The road will be barricaded at times to accommodate fire crews.
The barricades will be set up at the junction with Forest Road 380, which leads to Peavy Cabin, and at the Anthony Lakes Ski Area.
The byway is open from Baker Valley to Anthony Lake and the Forest Service campground there, as well as to the Elkhorn Crest trailhead.
Road 380 to Peavy Cabin, a Forest Service rental cabin, remains open.
The Badger Butte 2 fire, originally estimated at 50 acres, is now pegged at about 25 acres.
About 120 people are working on the fire, which burned throughout Monday night, according to the Forest Service.
A fire camp is set up in the parking lot at the Anthony Lakes ski area.