I never made it to Yellowstone but I was in the badlands to see Mt Rushmore and the crazy horse monuments. I went to Devil's tower in Wyoming and Custers national park in Montana at little big horn. From there I went to Glazier national park but had to turn around because of a snowstorm in early June. I eventually made it to Yosemite National park. I Had a nice time but missed going to the big ditch (Grand Canyon) and the four corners monument due to wild fires that year.