Another day of cooler temperatures kept the Chrandal forest fire from spreading in the south end of the Bitterroot National Forest. About .15 of an inch of rain fell on the fire Sunday.

The wildfire is still about 1,800 acres and is burning south of Painted Rocks Reservoir just north of the Idaho border.

Crews mopped up several spot fires on the Salmon-Challis National Forest in Idaho Sunday, and firefighters also constructed direct fire line on the northeast side of the blaze.

Monday, crews will work on the south edge of the fire, proceeding east, looking for more spot fires out away from the main fire perimeter.

Officials say 37 structures are threatened by the fire in the upper Hughes Creek area. Only local residents are allowed on the Hughes Creek. There are trail closures in that section of the forest, too. Over 286 people are working on the fire, including seven 20-person crews and three helicopters.

The fire is burning in areas heavily damaged by the Mountain Pine Beetle. (See photo)