Thanks for the info and photos. That last bit at Muir's summit block does look kind of gnarly, but I'll see how I feel when I'm there in person. I may take a pass on this one if it's too much.
Any advice on how to recognize when you're at the base of Muir and should leave the Whitney Trail? From what I understand, it's not very obvious. One report said it's about 15 minutes beyond Trail Crest when heading up, and there's a cairn and a faint use trail, but it's easy to miss.
