Plex
Last of the Great Unknown
In Watchlist

Last of the Great Unknown

The story of Grand Canyon's hidden slot canyons, the canyoneers who systematically explored their drainages, and the secrets hidden deep within their walls.
7.3
  • 2012
  • 22 min
  • Documentary, Short, Sport

Related Movies on Plex

  • The Motivation
  • Carl Panzram: The Spirit of Hatred and Vengeance
  • Starring Adam West
  • 12 O'Clock Boys
  • Shackleton's Captain
  • Venus and Serena
  • Iris
  • Pretty Sweet
  • Ice Guardians
  • The Redeemed and the Dominant: Fittest on Earth
  • The Russian Five
  • Meru
  • No No: A Dockumentary
  • National Parks Adventure
  • Manny
  • Bigger, Stronger, Faster
  • Road
  • Murderball
  • Side by Side
  • Sound City
  • My Scientology Movie
  • The Unbelievers
  • Skydancers
  • The House I Live In
  • The Nazis Strike

Take Plex everywhere.

Watch free anytime, anywhere, on almost any device.

  • Roku
  • Samsung
  • Amazon Fire TV
  • Android
  • Apple TV
  • Apple iOS
  • Chomecast
  • XBOX
  • nVidia
  • Vizio
  • PlayStation
  • LG

See the full list of supported devices