I was up in the Tetons and Yellowstone last week and it felt nice being able to CCW most everywhere. I've attached a pic of the tricky transparent signs that are located on the buildings with no firearms allowed. I missed this one at first and walked into the building and noticed rangers. I walked back out and it took me a moment to see this sign from the right angle. I had to have my son stand in the background to provide a darker surface so I could even take a picture of it. LOL
It was also great to see someone OC'ing in the park and no one around making much of a deal of it. All in all, had great time there and didnt have to leave my gun in the car too much. Most of the time, if there was a sign on a gift shop door (only happened in the Tetons at one place), I stayed outside.
Anyways, thought I'd post this experience to enlighten those thinking of heading up to Wyoming to see the grand Tetons or Yellowstone.