Horizon
tv show

1170 total episodes
-
61 seasons
First Aired February 04, 1964
Genres:
Overview
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
The Billion-Dollar Marsh poster unavailable
The Billion-Dollar Marsh
Season 9 - Episode 27 - 1h 0m
Air Date
November 09, 1972
Overview
This episode of Horizon is about the east coast marshes of America, called the "Wetlands" and the effects of urban development on the wildlife.