join National Geographic on a trip to America's history retrace the route 18th century Spanish explorers truck as they fought their way from Mexico to what is now San Francisco or follow the footsteps of freedom writers as they walked from Martin with Martin Luther Jr from Selma to Montgomery in the 1960s. 14 National historical trails chronologize in these pages echo was famous names extraordinary adventures Lewis and Clark the phone Express sad exile of the Cherokee and trailer tears each extra represents a chapter of the past highlighted by breathtaking and evocated. modern photographs as well as historical images and illustrations detailed maps trial information and more this beautiful book retraces trails that lead step by step determine step-mile by audience smile to the American we know today