Mike Brodie was 17 years old when he first started hopping freights in 2003. Since then, over the course of several years, the photographer traveled 50,000 miles across the US by any means available—walking, hitchhiking, and train-hopping. His iconic series A Period of Juvenile Prosperity documents the gritty, nomadic lifestyle of vagabonds, hobos, and Brodie’s fellow train-hoppers as they led lives as sordid as they were liberating.