Last of the Great Unknown

Last of the Great Unknown

22 mins | Documentary | April 26, 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.

Last of the Great Unknown

22 mins | Documentary | April 26, 2012

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.
Producers
Original title Last of the Great Unknown
Directors Dan Ransom
Writers

Cast

Bill Formanek

as Self

Todd Martin

as Self

Dave Nally

as Self

Rich Rudow

as Self

Guy Smith

as Self