MacDonald Pass Airway Beacon, Powell County, MT ID: 5160 | This file appears in: MacDonald Pass Airway Beacon Beacon with generator house foundation in foreground. View to the east. | Creator: Kate Hampton, photographer | Date: April 2013 | Source: National Register of Historic Places nomination form. On file at the Montana Historical Society Preservation Office, Helena, MT. Download Original File CreatorKate Hampton, photographerSourceNational Register of Historic Places nomination form. On file at the Montana Historical Society Preservation Office, Helena, MT.DateApril 2013 "MacDonald Pass Airway Beacon, Powell County, MT" appears in: MacDonald Pass Airway Beacon