Gibson, K., McGregor, M., & States. Forest Service. Northern Region. State & Private Forestry, U. (1979). A review of selected mountain pine beetle epidemics and the infestation potential for the Tally Lake Ranger District, Flathead National Forest, Montana. : Missoula, MT. : Forest Insect & Disease Management, USDA, Forest Service, Northern Region, State & Private Forestry.