The lightning-caused Ridge Fire, which has grown to 5,246 acres, is now 35 percent contained.
418 personnel remain on the scene, including eleven 20-person Hotshot crews and eight helicopters for support.
Fire managers said crews and aerial support have focused on pockets of single tree torching and areas of ground heat in order to keep the blaze within the perimeter. Most of the fire's activity has been on the northeast flank of the blaze. Meanwhile, the Cat Lakes area is expected to be staffed by a division supervisor and safety officer as rugged terrain and failing trees make it unsafe for crews to work. The fire's spread has been minimal in that area.
As of July 28, more than 68 tons of cargo have been transported from base camp to the fire.
Meanwhile, smoke from the fire, in addition to smoke from large fires in Oregon and California, can be detected in the Treasure Valley.