What I learned about going to Yellowstone: You should never tell a 2 yol that you're going to Yellowstone Park if you're not 100 percent sure there are swings. I have half a mind to write the National Forest Service a letter and ask that they install a swingset next to Old Faithful.
These are pictures of our trip through Yellowstone. We had a bit of a traffic jam when the rangers moved the bison herd from one area of the park to another. Got pretty close to the stinky things -- as you can see. Was a lot like getting stuck in traffic in the metro area, only we got to see bison.