McGregor, M., States. Forest Service. Northern Region. Forest Insect and Disease Management, U., & States. Forest Service. Northern Region. State & Private Forestry, U. (1978). Evaluation of mountain pine beetle in high use areas and other infested stands on the Hebgen Lake Ranger District, Gallatin National Forest, 1977. : Missoula, MT. : Forest Insect & Disease Management, USDA, Forest Service, Northern Region, State & Private Forestry.