When did Horizon Season 11 Episode 7 air?
Horizon Season 11 Episode 7 aired on February 18, 1974.
Horizon
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Season 11 · Episode 7
Where Did the Colorado Go?
Feb 18, 1974·1h
Horizon investigates reports of abuse of the Colorado river in the USA.
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Direct answers for episode-level questions and details.
How long is Horizon Season 11 Episode 7?
This episode runs for approximately 60 minutes.
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