[Daryles]

We made that trip a few years ago.
Stayed at Ponderosa in Cody. It was tight!!
So much to see here.
Took 120 from Cody to Thermopolis.
There are petroglyphs on the way to Thermopolis. It's a dirt road to see them. Big gravel parking lot. Easy to turn around if you wanted to stop and have a look along the way.
Stayed at Eagle RV park in Thermopolis. There's a lot to see in this area too. Hot Springs, Petroglyphs, dinosaur museum.
Took US-20 to Shoshoni, then US-26 to Casper and South on i25 to Denver. We took the toll road around Denver. We were going to Colorado Springs. BTW, i25 south was the WORST road we have ever traveled. We could only do about 40mph. Hopefully it has been repaired now.
All in all Colorado has the worst roads we have traveled.