spent 6 days there last year (not going this year)
Do try to see some Denver / Colorado if you get the chance.
The Denver Zoo is excellent, Boulder is right up the road, Estes Park, Lyons, all very close. Idaho springs, (south and west) tucked against the interstate in the valley is a picturesque little town with Tommyknocker brewing - home to an excellent black IPA...
(wishing I could go again this year !!!)