The McCandless family put this plaque inside the bus in 1993. It includes Chris McCandless' last words, found inside his journal:
Chris, our beloved son and brother died here during his adventurous travels in search of how he could best realize God's great gift of life. With his final message, "I have had a happy life and thank the Lord. Goodbye and God bless all," we commend his soul to the world.
(Neal Karlinsky/ABC News)