Honestly, not very befitting for a rocky mountain state. I'm not saying they need to go through a major mountain pass, but I don't know Boulder very well. Maybe it's mostly flat there. I drove through once and I I remember was a really long boring congested road with no shoulder with lots of cyclist and impatient cars... and a canyon road heading out of town towards Estes Park. In between was just typical American suburbia with a giant strip mall for 5 miles in between.