Boulder, Colorado

Boulder is the 11th most populous city in the state of Colorado. It is home to the University of Colorado, the state's largest university. Located at the base of the foothills of the Rocky Mountains at an elevation of 5,430 feet (1,655 m), Boulder is 25 miles (40 km) northwest of Denver. It is surrounded by a greenbelt of city trails and open spaces. The entire region is a paradise for hiking, cycling, rock climbing and almost every kind of outdoor activity.. It is just under an hour's drive from Denver International Airport.