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Feature film — 2012

Last of the Great Unknown (2012)

8.00h 22mDocumentary

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

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A high-signal pick with 1 votes.

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Director: Dan Ransom

On screen

Cast & crew

B

Bill Formanek

Self

Todd Martin as Self

Todd Martin

Self

D

Dave Nally

Self

R

Rich Rudow

Self

G

Guy Smith

Self

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