Greyhound Lines serves Boulder and Fort Collins. The expansive network of the Regional Transportation District (RTD) includes service from Denver and Denver International Airport to and within Boulder, Lyons, Niwot, Nederland, and the Eldora Ski Resort. The Hop bus (part of the RTD network) is a circulator that makes for easy carless travel within Boulder between the university, the Hill, the Twenty-Ninth Street shopping area, and downtown. Buses run in both directions every 6-10 minutes weekdays, and 15-20 minutes on weekends. Transfort serves Fort Collins's main thoroughfares.
Greyhound Lines (800/229-9424. www.greyhound.com). Regional Transportation District (RTD. 303/299-6000 or 800/366-7433. www.rtd-denver.com). Transfort (970/221-6620. fcgov.com/transfort).