I am an absolute greenhorn to this. I am going to the US in February and meet a friend in SD for few days. From there I want to hire a car and make my way to Denver, from where I will fly back to Germany. I have 15 days for this road trip, so plenty of time to look at things.
Can somebody tell me what would be a good route for me and what you consider a must-see. How will the winter in Colorado affect my plan to have to be there on time for my flight back?
Thanks for your help.