Question: Metal Flowers Media, LLC is a casting company for unscripted programming and reality television based in Hollywood, California with a branch office in Boulder, Colorado, Metal Flowers Media, LLC is a casting company for unscripted programming and reality television based in Hollywood, California with a branch office in Boulder, Colorado, Boulder, is the home rule municipality that is the county seat, and the most populous municipality, of which country?

Context paragraphs:
Parker, Colorado: Parker is a home rule municipality in Douglas County, Colorado, United States.  As a self-declared "Town" under the Home Rule statutes, Parker is the second most populous town in the county; Castle Rock is the most populous.  In recent years, Parker has become a commuter town at the southeasternmost corner of the Denver Metropolitan Area.  As of the 2010 census the town population was 45,297; the estimated population in 2014 was 49,857.  Parker is now the 19th most populous municipality in the state of Colorado.

Boulder, Colorado: Boulder ( ) is the home rule municipality that is the county seat and the most populous municipality of Boulder County, and the 11th most populous municipality in the U.S. state of Colorado.  Boulder is located at the base of the foothills of the Rocky Mountains at an elevation of 5430 ft above sea level.  The city is 25 mi northwest of Denver.

Alamosa, Colorado: Alamosa is a city under Home Rule Municipality that is the county seat and the most populous municipality of Alamosa County, Colorado, United States.  The city population was 8,780 at the 2010 United States Census.  The city is the commercial center of the San Luis Valley in south-central Colorado, and is the home of Adams State University.

Metal Flowers Media: Metal Flowers Media, LLC is a casting company for unscripted programming and reality television based in Hollywood, California with a branch office in Boulder, Colorado.

Glenwood Springs, Colorado: The City of Glenwood Springs is the Home Rule Municipality that is the county seat and the most populous municipality of Garfield County, Colorado, United States.  Glenwood Springs is located at the confluence of the Roaring Fork River and the Colorado River, threading together the Roaring Fork Valley and a series of smaller towns up and down the Colorado River.  As of the 2010 census it had a population of 9,614.

Longmont, Colorado: The City of Longmont is a Home Rule Municipality in Boulder and Weld counties of the U.S. state of Colorado.  Longmont is located northeast of the county seat of Boulder and 33 mi north-northwest of the Colorado State Capitol in Denver.

Greeley, Colorado: The City of Greeley is the Home Rule Municipality that is the county seat and the most populous municipality of Weld County, Colorado, United States.  Greeley is in northern Colorado and is situated 49 mi north-northeast of the Colorado State Capitol in Denver.  According to a July 2015 estimate by the U.S. Census Bureau, the population of the city is 100,883, and a 2014 population estimate made Greeley the 12th most populous city in the state of Colorado.  Greeley is a major city of the Front Range Urban Corridor.

Fort Collins, Colorado: Fort Collins is the Home Rule Municipality that is the county seat and the most populous municipality of Larimer County, Colorado, United States.  Situated on the Cache La Poudre River along the Colorado Front Range, Fort Collins is located 65 miles (105 km) north of the Colorado State Capitol in Denver.  With a 2016 estimated population of 161,000, it is the fourth most populous city in Colorado after Denver, Colorado Springs, and Aurora.  Fort Collins is a midsize college city, home to Colorado State University.

Colorado Springs, Colorado: Colorado Springs is a home rule municipality that is the county seat and the most populous municipality of El Paso County, Colorado, United States.  Colorado Springs is located in the east central portion of the state.  It is situated on Fountain Creek and is located 60 mi south of the Colorado State Capitol in Denver.

Grand Junction, Colorado: The city of Grand Junction is the home rule municipality that is the county seat and the most populous municipality of Mesa County, Colorado, United States.  The city has a council–manager form of government, and is the most populous municipality in all of western Colorado.  Grand Junction is situated 247 mi west-southwest of the Colorado State Capitol in Denver.  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 and the most populous city on the Colorado Western Slope.  Grand Junction serves as a major commercial and transportation hub within the large area between the Green River and the Continental Divide.  It is the principal city of the Grand Junction Metropolitan Statistical Area which had a population of 146,723 in 2010 census.

Supporting paragraphs: Metal Flowers Media Boulder, Colorado
Answer: Boulder County