What does he carry with him into the wilderness?

As he trudged expectantly down the trail in a fake-fur parka, his rifle slung over one shoulder, the only food McCandless carried was a ten-pound bag of long-grained rice—and the two sandwiches and bag of corn chips that Gallien had contributed. A year earlier he’d subsisted for more than a month beside the Gulf of California on five pounds of rice and a bounty of fish caught with a cheap rod and reel, an experience that made him confident he could harvest enough food to survive an extended stay in the Alaska wilderness, too.

The heaviest item in McCandless’s half-full backpack was his library: nine or ten paperbound books, most of which had been given to him by Jan Burres in Niland. Among these volumes were titles by Thoreau and Tolstoy and Gogol, but McCandless was no literary snob: He simply carried what he thought he might enjoy reading, including mass-market books by Michael Crichton, Robert Pirsig, and Louis L’Amour. Having neglected to pack writing paper, he began a laconic journal on some blank pages in the back of Tanaina Plantlore.