Last of the Great Unknown

Last of the Great Unknown

Overview

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.

Genre:Documentary

Director:Dan Ransom

Actors:Bill Formanek, Todd Martin, Dave Nally, Rich Rudow, Guy Smith

Duration: 22m

Release:2012

Release Date: Apr 26, 2012

IMDb:8.0

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Last of the Great Unknown

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