Hi Bee,
I love google earth. I actually use it in my professional life every day.
Now this could be a guy thing...or just a Tom thing...not sure. I did ask for directions, but I don't really want to be guided on something like this. It's probably all based in ego. The first part being "I don't need to ask for help, I can do this on my own". The second part being that I hate it when people have to wait for me. I am definitely the turtle. I can go for very long distances and I can endure a lot of pain, but I'm going to do it at my pace.
You do have quite the Whitney lumenaries on your list of hiking partners

Tom