Road trip

Hi there, I’m planning a road trip landing in Denver then travailing to Casper, up to the battle of big horn memorial then spending 6 days in the yellow stone area, there is so much to see in Montana we will be spending the most time there.We Then travel down to canyon lands, along to gunnison national park, along to sand dunes national park then back to Denver airport.

I have two weeks and as this is a big holiday we have saved for, we are coming from England and I want to know what we should see on the way? Any amazing places to eat?

Thanks for any help