Boulder is the county seat and most populous city of Boulder County and the 11th most populous city in the state of Colorado. Boulder is the home of the main campus of the University of Colorado, the state's largest university, and Naropa University, one of two accredited Buddhist-inspired universities in the United States. Located at the base of the foothills of the Rocky Mountains at an elevation of 5,430feet (1,655m), Boulder is 25miles (40km) northwest of Denver.