Last of the Great Unknown

Name: Last of the Great Unknown
Director: Dan Ransom
Genre: Documentary
Released: 2012-04-26
Duration: 22 min
Cast: Bill Formanek, Todd Martin, Dave Nally, Rich Rudow, Guy Smith

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2012 · 22 min · Documentary · TMDB 8.0/10

Overview

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

Directed by Dan Ransom

Cast

Bill Formanek — Self
Todd Martin — Self
Dave Nally — Self
Rich Rudow — Self
Guy Smith — Self