Bustang is an intercity bus service in the U.S. state of Colorado. Service began in 2015 and originally traveled between Denver and Colorado Springs, Fort Collins, and Glenwood Springs. Service has since been expanded to connect Grand Junction, Durango, Gunnison, Alamosa, Pueblo, Fairplay and Lamar among others. It is Colorado's first state-run bus service. Capital costs are paid for from various state and federal sources, and operating costs are covered 60% by fares. In 2025, the system had a ridership of approximately 351,000.