A century after Lewis and Clark explored the newly purchased lands west of the Mississippi River, Olin D. Wheeler set out on his own epic journey. Using the explorers' original journals as a guide, he followed the old trail and recorded the changes to the land and landscape. Wheeler traveled by train, steamboat and pack train accompanied by a photographer. The Trail of Lewis and Clark is a fascinating look at the still burgeoning west, a century after that ambitious exploration of America's new frontier.