Transportation to and from Boulder is available by rental car, limousine, or bus. Reservations are suggested. A regional bus service, the RTD , provides transportation between DIA and Boulder.
Buses leave every half-hour to an hour depending on the time of day.
Trip time is about 90 minutes, with a final stop at the Boulder bus station. Local Boulder taxi service is also available. Travel under the US-36 overpass, to the first stoplight, at 27th Way. Get in the left turn lane and follow 27th Way up the hill to Broadway. Parking permits are not required on-site, and visitors to the Labs may use any unmarked space.