The Lump Gulch Fire was a wildfire that burned in Jefferson County in the state of Montana in the United States. The fire, which was first reported on June 13, 2020, was started by a downed power line. It burned in the Lewis and Clark National Forest, Helena National Forest, and on state and private land. As of June 23, the fire had burned and was 85 percent contained. Two outbuildings were destroyed by the fire and select areas on National Forest land were closed due to the fire.