Not to worry, darling Jocko, I'm getting too old to do the back country trails any more, nor do we have the time. Girlfriend has never seen Yosemite other than in Ansel Adam prints so we are going for the weekend and staying outside the park, taking a bus tour inside the park, so unless you hear something about a whole busload falling into a Twilight Zone hole, we'll be OK.
So far the only hole I've found is in AT&T's cellular coverage. None in Yosemite.
Sounds good. Thanks. Relieved to read that. Cheers.