The Buffalo Bill Mueasum has the largest private gun collection, don’t forget the basement displays, drawers full of rifles. If you go there check out the Heart Mtsn Internment Camp on highway 14A between Powell and Cody. Depending on the time of year Cody also has nightly rodeos. The Irma Hotel is the “old western” place, the restaurant has a couple hundred animal heads in the dining room. It has a decent breakfast buffet.
Google the Beartooth Pass, from Dead Indian to Red Lodge, MT, great dive. If the kiddos are brave, take some cheap peanuts, the last rest stop on top of the mountain overlooking Red Lodge has chipmunks that will eat out of your hand. The Red Lodge Pizza Company makes a mean pie and downtown is a nice walk.
The road to Yellowstone has a lot of rivers for fishing, as well as the beartooth pass. Just remember your in bear country.
Once your in/around Yellowstone, READ THE DAMN SIGNS, DONT APPROACH THE WILDLIFE AND STAY ON THE DAMN WALKING PATHES. Every year a tourist gets hurt or killed for being stupid. Two years ago an idiot jumped into a hot pool thinking it was going to be like a hot tub. His body MELTED. If you want to look at the wildlife along the roadway, park completely off the road. Every other driver will stop, start rubber necking and we have a 5 mile long traffic jam.
Enjoy