Ok, The John Muir Overlook is the farthest North I'll be. I was planning on seeing Maude's Crack though(that sounds so bad). We'll be going past Angel Falls and Station Camp on the way in. I'll be sure to look for Slave Falls while in the Arches area too. If I have to go to ground for whatever reason, I don't think I'll have a problem. It wouldn't be as comfortable of course, but livable.