The story of Grand Canyon's hidden slot canyons, the canyoneers who systematically explored their drainages, and the secrets hidden deep within their walls.
Genre: Documentary
Stars: Bill Formanek, Todd Martin, Dave Nally, Rich Rudow, Guy Smith
Crew: Dan Ransom (Director)
Country: United States of America
Language: English
Studio:
Runtime: 22 minutes
Quality: HD
Released: Apr 26, 2012
IMDb: 3
Keywords:sports, grand canyon
