| Big Sheep Mountains | |
| Country: | United States |
| Region: | Montana |
| Range Coordinates: | 47.316°N -105.292°W |
| Highest: | Big Sheep Mountain |
| Elevation: | 3600feet |
| Elevation Ref: | [1] |
| Coordinates: | 47.0541°N -105.7299°W |
The Big Sheep Mountains are located in the eastern area of the U.S. State of Montana in Prairie County, Montana. They are the easternmost mountains in Montana. Nearby towns include Circle, Lindsay, and Glendive.