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4m 37s

Mt St Helens Crater

Fly into the 1980 crater of Mt. St. Helens and learn how volcanic forces are building a new lava dome as geologists train for the next volcanic eruption around the Pacific Rim.

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5m 30s

Ape Cave

We’ll explore the third longest lava tube in the nation. Red hot lava built this cave during a massive explosion on Mt St Helens 2000 years ago.

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5m 0s

Scraping Together Mt Olympus

This gorgeous mountain is not volcanic, but the accumulation of millions of years of ocean sediment pushed into a dazzling mountain range.

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5m 0s

Teanaway Tropics

Palm trees in the center of Washington state? Yes, if you’re willing to go back 55 million years, when the Northwest was hot and humid.

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4m 46s

Smith Rock Caldera

This Oregon landmark is now traced back to supervolcanic explosions related to the Yellowstone Hot Spot.

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KCTS 9 Passport has arrived in Canada

More than 1,000 hours of shows are now available. Check out our Canada A - Z page for more info.