This is a very famous waterfall in Yellowstone National Park. I was there smack dab in the middle of the day, which is just about the worst time to take photos. So be it, Jedi. I got out the old trusty and handy 200-400mm lens to take a shot. It's not that big. It'll fit right in your back pocket. (BTW, see my Nikon 200-400 Review for more).
Read more here at the Stuck in Customs blog.