By Michael Lanza
When three friends and I decided to attempt to thru-hike the John Muir Trail—221 miles through California’s High Sierra, with numerous mountain passes ranging from 11,000 to over 13,000 feet in elevation—in just one week (backpackers traditionally take two to three weeks), the plan seemed like a wild dream. Hike 31 miles a day for seven straight days through some of the biggest mountains in the Lower 48? It was an agenda for lunatics. So we started training. Seriously training.