The City of Grand Junction is the largest city in western Colorado. It is a city with a council–manager government form that is the county seat

County seat

A county seat is an administrative center, or seat of government, for a county or civil parish. The term is primarily used in the United States....

 and the most populous city of Mesa County

Mesa County, Colorado

Mesa County is the fourth most extensive and the eleventh most populous of the 64 counties of the state of Colorado in the United States. The county was named for the many large mesas in the area, including Grand Mesa. The county population was 146,723 at the 2010 United States Census. The...

, Colorado

Colorado

Colorado is a U.S. state that encompasses much of the Rocky Mountains as well as the northeastern portion of the Colorado Plateau and the western edge of the Great Plains...

, United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

. Grand Junction is situated 247 miles (398 km) west-southwest of the Colorado State Capitol

Colorado State Capitol

The Colorado State Capitol Building, located at 200 East Colfax Avenue in Denver, Colorado, is the home of the Colorado General Assembly and the offices of the Governor of Colorado and Lieutenant Governor of Colorado. The building is intentionally reminiscent of the United States Capitol. Designed...

 in Denver

Denver, Colorado

The City and County of Denver is the capital and the most populous city of the U.S. state of Colorado. Denver is a consolidated city-county, located in the South Platte River Valley on the western edge of the High Plains just east of the Front Range of the Rocky Mountains...

. As of the 2010 census, the population of the city was 58,566. Grand Junction is the 15th most populous city in the State of Colorado

Colorado

Colorado is a U.S. state that encompasses much of the Rocky Mountains as well as the northeastern portion of the Colorado Plateau and the western edge of the Great Plains...

 and the most populous city on the Colorado Western Slope

Colorado Western Slope

The Western Slope of Colorado refers to a region of the U.S. state of Colorado incorporating everything in the state west of the Continental Divide. The Colorado River and its tributaries divide the region into north and south at Grand Junction, Colorado...

.