This brings back memories. My dad bought a ranch out there in the mid 90's and I worked out there for a couple years before I started missing people.
If you go by Worland Wy, see if a restaurant called "Harry's" is still there. Dude was an absolute chef with steaks and soups. Honestly the best steaks and soups I've ever had in my life.
If you have time hit up the gun museum in Cody Wy. Freaking huge assortment of guns you wouldn't believe. One of a kind 1400's era stuff all the way up to ww2 machine guns.
If you go by Tensleep Wy, stop at the Bighorn bar. We used to get hammered in there and the owner, Bob, was a barrel chested bad ass. When he threw someone out of the bar, they made fun of him for being old, because dude hit the sidewalk before the road. Most of those old dudes are dead at this point but just have one for me for old times.