Hiking the John Muir Trail?
What should I do if I want to hike the John Muir Trail??
As I said in the appendix of The Trail, the best thing you can do is read Elizabeth Wenk's fantastic guide to the JMT:
Please carry some kind of paper maps or guidebook—I've had to help more than one person "lost in the wild" when their phone with all their maps and vital information was dropped or died. Paper has no batteries! I personally recommend:
And please please please follow all Leave No Trace (LNT) guidelines.
Be sure to check out Wenk's other great hiking guides too: