UNDAUNTED COURAGE, by Stephen E. Ambrose
THE JOURNALS OF LEWIS AND CLARK, by Bernard DeVoto
TRAVELING THE LEWIS AND CLARK TRAIL, Fourth Edition, by Julie Fanselow
DISCOVERING THE LEGACY OF LEWIS AND CLARK, brochure by Lewis and Clark Interagency Partnership
LEWIS and CLARK TRAIL GUIDE, by B.W. SMALLEY
LEWIS and CLARK ROAD TRIPS, Exploring the Trail Across America, Kira Gale
http://www.greatriverroad.com/lewclark/lewhome.htm
www.lewisandclarktrail.com