to
Update
is a city in and the county seat of Beaverhead County, Montana, United States. The population was 3,752 at the 2000 census.
Dillon is located at (45.215735, -112.634055), at an altitude of 5102 feet (1555 m). It lies approximately 40 miles (65 km) east of the Continental Divide.
According to the United States Census Bureau, the city has a total area of 1.6 square miles (4.2 km²), all of it land.
Dillon is home to the Beaverhead River, a "blue ribbon" fly fishing river.