I can check off Idaho, Montana, and Wyoming off my "states to see" list. I went to Rexburg to hang out with Christie. After Christie ran her 5K, we decided we were much too close to Yellowstone to not make the trip happen. Turns out yesterday was "National Public Lands Day" so we got to enter the park for free!!! I'm not generally a forest person. I would much rather see dirt and cactus for miles anyday before pine trees and mountains BUT Yellowstone proved to be one of the most scenic, magnificnet, and beautiful places I've ever been. Our timing was perfect becuase all of the leaves are reds, yellows, and oranges (seeing that we're so far North). Here's the thing, buffalo, elk, deer, ram, and other wild game do come right up to the road. They seriously own the place.
The park covers 3 states so it's pretty much impossible to see anything in it's entirety. Having said that we knew we wanted to see Old Faithful above everything else. Apparently Yellowstone is home to more geysers than any one place in the world. See for yourselfhttp://www.nps.gov/yell
Basically what it comes down to is that Yellowstone is absolutely beautiful and everyone should see it before they die.