Season 18 (1970)

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Sudden Oak Death, Restoring Animal Corridors
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January 1, 1970

Episode 1 of Season 18 premiered on January 1, 1970

Managing Cougar Populations, Indian Village Excavation, Kayak Fishing
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January 1, 1970

Episode 2 of Season 18 premiered on January 1, 1970

Wave Energy, Salmon Tracking, Skateboarding
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January 1, 1970

Episode 3 of Season 18 premiered on January 1, 1970

Wildcat Haven, Walking History Tour of Portland, Freshwater Mussels
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January 1, 1970

Episode 4 of Season 18 premiered on January 1, 1970

Middle Owyhee River, Fish Hatchery Lab, Anthony Lakes Skiing
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January 1, 1970

Episode 5 of Season 18 premiered on January 1, 1970

Steens Archeology, Metro's Greenspace Program, Olympia Oysters, Valley of the Giants Photo-essay
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January 1, 1970

Episode 6 of Season 18 premiered on January 1, 1970

Burrowing Owls, Carpenter Ants, Crosscut Sawyer
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January 1, 1970

Episode 7 of Season 18 premiered on January 1, 1970

Bird Flu, Green Crabs, Borax Lake Chub, Mickey Hot Springs Photo-essay
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January 1, 1970

Episode 8 of Season 18 premiered on January 1, 1970

High Lava Plains, Dragonfly Watching, Mountain Quail, Stout Mtn. Photo-essay
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January 1, 1970

Episode 9 of Season 18 premiered on January 1, 1970

Mars Rover, Pond Turtles, Tram Story, Ironworkers
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January 1, 1970

Episode 10 of Season 18 premiered on January 1, 1970

Talus Caves, Adventure Photographer, Global Warming and Vineyards
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January 1, 1970

Episode 11 of Season 18 premiered on January 1, 1970

Fort Stevens Re-enactment, Mountain Man Rendezvous, Primitive Living
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January 1, 1970

Episode 12 of Season 18 premiered on January 1, 1970