The Film & More Reference Interview Transcripts | Bibliography | Primary Sources Michael Ghiglieri, Colorado River Guide on: The Great Unknown The Expedition Crew Disaster Falls The Challenging Environment The Loss of Powell's Arm The Need to Succeed The Grand Canyon Ancient Civilization in the Canyon His Feelings About Powell Powell's Legacy Curtis Hinsley, Historian, on: Growing up in an Abolitionist Household Powell's Father is Science The Appeal of the River Powell's Influence The Civil War The Future of America The Sublime Landscape Donald Worster, Historian, on: Powells Early Education The Appeal of the River Powells Father Powells Participation in the Civil War The Loss of His Arm The Unknown Territory The First Expedition Powells Leadership The Sublime Landscape Separation Rapids Powells Success Settling the West Powells Legacy Program Description | Enhanced Transcript | Reference THE FILM & MORE | SPECIAL FEATURE | TIMELINE | MAPS PEOPLE & EVENTS | TEACHER'S GUIDE THE AMERICAN EXPERIENCE | KIDS | FEEDBACK | SEARCH WGBH | PBS Online ©