I was last in Denver about 5 or 6 years ago before the light rail system to the airport was operating. As I recall it was a flat rate of $55 or $60 by taxi from Denver Union Station to the airport back then. We are thinking of detraining from No. 6 and taking the light rail system to the airport and staying at a hotel there. What is the interface like between Amtrak and the light rail system at Denver Union Station? Long walk or short? I assume there are user friendly machines where you buy your ticket and that there is good signage. Is the airport terminal of the light rail system close to any hotels or would you take a hotel shuttle on that end? Thanks in advance for any advice.