Sun River, MT
Sun River is a census-designated place (CDP) in Cascade County, Montana, United States. The population was 131 at the 2000 census. It is part of the 'Great Falls, Montana Metropolitan Statistical Area'.
Sun River is located at 47°31′55″N 111°43′47″W / 47.53194°N 111.72972°W / 47.53194; -111.72972 (47.531915, -111.729648).
According to the United States Census Bureau, the CDP has a total area of 1.8 square miles (4.7 km²), all of it land.