We've gone from central Texas to Yellowstone and it's a beautiful trip.
Here's where we stayed.
1 night Amarillo KOA. If you have time, the play "Texas" is fun at Palo Duro Canyon which also has a nice campground. 4 nights Mueller State Park in Colorado Springs. Our site looked out to Pikes Peak. It's a beautiful park. 1 night Rawlins, Wy KOA, 10 nights Flagg Ranch between Yellowstone and Tetons. It was ok but Yellowstone is such a big park, I recommend staying at one of the campgrounds in the park. The same with the Tetons. 1 night Vernal, UT KOA, 5 nights Priest Gulch Campground in Delores, CO. This is a great campground on the Delores River. They begin taking reservations on Jan. 1 and fill up immediately.
In south Colorado, we love Black Canyon, Crested Butte, Ouray, Durango, Telluride, Mesa Verde.
In Wyoming, the Snowy Range is wonderful. It's west of Laramie. Our kids had a snow ball fight on June 28th. It's easy to drive through on the way to Yellowstone. Flaming Gorge is beautiful. We want to camp there on our next trip.
In Utah, we visited Dinosaur National Monument but the Josie Morris Ranch was very interesting.
Have a great trip!
2007 Cardinal 33 TBHLE (AKA Big Red)
2009 Ford F350 6.4L Powerstroke Diesel