where is big timber montana
Big Timber, MT. Sponsored Topics. Big Timber is a city in and the county seat of Sweet Grass County, Montana, United States. The population was 1,650 at the 2000 census. Big Timber is located at 45Â°50â²0â³N 109Â°57â²1â³W / 45.833333Â°N 109.95028Â°W / 45.833333; -109.95028 (45.833224, -109.950361).