Crews are working to put out a fire started by lightening Sept. 8 that is burning near the east boundary of Mount Rainier National Park, within a mile of Three Lakes, park officials said Sunday.
The fire has burned 5 acres and is expected to be fully controlled Tuesday.
25 people are working to put out the blaze, including North Cascades Smokejumpers, Mount Rainier National Park firefighters a helicopter crew and personnel from Denali National Park.
North Cascades smokejumpers got to the fire this morning to help with ground operations.
All trails in the park are open, except the Laughingwater Creek Trail, which is closed between state Route 123 and the crest, park officials said.
Most of the smoke visible in the area is from fires outside the park.