We will be in Park City, Utah late June for a family reunion. Will have four to five days to get back home to St. Louis, MO. We would like to go down to Southern Utah and then across to southern Colorado and then home. We have been to Denver would like to see southern colorado. Is there a good route for this and am I allowing enough time? Thanks for any suggestions. Almost forgot, we will be in Park City for four days, what can we see within a days drive (there and back). Thanks again.