I really want to do the hike to the base of Tower Fall, but some sites say its hasn't been open since 2004, while others like nps say it is open.I also have a Yellowstone guide I bought thru the park that says you can go there as well. I know you can go to the observation deck, but what about the base? I really hope it's open. If not, I've seen some post about taking the trail down to the river and then walking upstream to get there. If that is the only way there, how long do you have to walk down the river to get there? Any info would be much appreciated.