Granite Pass Complex fire grows to 2,375 acres inciweb and last updated 2021-07-22 17:54:23-04 MISSOULA â The Granite Pass Complex fires in the area of Lolo Pass have grown by 267 acres to a total of 2,375 and are 0% contained. Fire managers expect the fire behavior to pick up on Thursday as a dry cold front moves across the area. Crews are continuing to work on preventing the fire from crossing US Highway 12. A 45-mile per hour speed limit remains in effect between Spring Gulch Road to Lolo Pass. An evacuation warning remains in effect between the Idaho border and mile marker 10 on Highway 12.