Title: Grand Canyon: The Hidden Secrets
Version: Grand Canyon: The Hidden Secrets
Released in: 1984
Genre Documentary
Cast Daniel T. Majetich, Coby Jordan, Bruce Simballa
Director: Kieth Merrill
Plot: Follow the scientific expedition of John Wesley Powell who mapped the canyon and boated the Colorado River rapids into modern times.
Version: Grand Canyon: The Hidden Secrets
Released in: 1984
Genre Documentary
Cast Daniel T. Majetich, Coby Jordan, Bruce Simballa
Director: Kieth Merrill
Plot: Follow the scientific expedition of John Wesley Powell who mapped the canyon and boated the Colorado River rapids into modern times.