The Great Unknown

Year 1970Episode 850 minavr. 12, 1970
The Great Unknown

Grand Canyon by Kayak and Raft 'We are now ready to start on our way down the Great Unknown. We are three-quarters of a mile in the depths of the earth. What rocks beset the channel, what falls there are, we know not.' The words are those of John Wesley Powell who, in 1869, became the first man to navigate the Grand Canyon of the Colorado River.

A hundred years later a dozen of the world's top canoeists, backed by three rescue rafts, retraced Powell's voyage into uncertainty. And though for them the dangers were no longer completely unknown, they were still real enough: 250 miles of river studded with over 200 rapids, some with great breaking waves up to 20 feet high, others with vast whirlpools that could suck down both man and kayak: this at the bottom of a canyon up to eight miles wide, over a mile deep - and from which escape was virtually impossible.
The film also tells something of the history of the canyon itself. But above all it is an action picture showing the excitement and danger of shooting one of the greatest rivers in the world.

The Great Unknown has aired on avr. 12, 1970 at 20:15
Previous EpisodeNext Episode

Trailer

We do not have any trailers for this episode

Recently Updated Shows

Recently updated shows that might be of your interest.
Jeopardy!
Running

Jeopardy!

Jeopardy! is a classic game show -- with a twist. The answers are given first, and the contestants supply the questions. Three contestants, including the previous show's champion, compete in six categories and in three rounds (with each round's "answers" being worth more prize money).

The Couple Next Door
Running

The Couple Next Door

A young couple move to the suburbs and instantly strike up a friendship with their new neighbours. But are they a bit too friendly?

The Librarians: The Next Chapter
Running

The Librarians: The Next Chapter

The Librarians: The Next Chapter centers on Vikram Chamberlain, a "Librarian" from the past who time traveled from 1847 and now finds himself stuck in the present. When Vikram returns to his castle in Belgrade, Serbia and discovers that it is now a museum, he inadvertently releases magic across the continent. With the help of a new team of eclectic heroes, including a savant in world history, a scientific genius, and a highly skilled Guardian, Vikram has only six months to clean up the mess he made.

The Bear
Running

The Bear

Carmy, a young fine-dining chef, comes home to Chicago to run his family sandwich shop. As he fights to transform the shop and himself, he works alongside a rough-around-the-edges crew that ultimately reveal themselves as his chosen family.

Casualty
Running

Casualty

They're fighting to save patients while their personal lives are brimming with drama and intrigue. Everything's at stake on the emergency ward.