Ms. Teasip and I are going to a wedding in Gillette in July. Rather than fly into Denver or SLC and take a puddle jumper, we are going to fly into Denver and drive up I-25, as she has never been through that part of the world. Any interesting places to stop on the trip? What about in the Gillette area?

Speed limit on I25 must be pretty high. Google maps says 5 hours 4 minutes for the 349 mile trip, and they are usually a little conservative...

Thanks!