Watch Last of the Great Unknown (2012)

Name: Last of the Great Unknown (2012)
Director: Dan Ransom
Genre: Documentary, Short, Sport
Released: 2012-01-01
Cast: Bill Formanek, Todd Martin, Dave Nally

Quality: HD
Genre:Documentary, Short, Sport
Director:Dan Ransom
Starring:Bill Formanek, Todd Martin, Dave Nally

Writers: N/A
Release date: 26 Apr 2012
Countries: United States
Languages: English
Runtime: 22 min

Last of the Great Unknown (2012) The story of Grand Canyon's hidden slot canyons, the canyoneers who systematically explored their drainages, and the secrets hidden deep within their walls.