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The History of Oakland, Told Through Its Geology

KQED's Forum

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The Relationship Between Oakland and Alameda

Every stream in the East Bay was flowing down to 400 feet below sea level. And so all the East Bay streams have these secret canyons underneath them that were dug at the height of the ice age. When the sea crept back in, they kind of filled in again. They covered their tracks. The shipping channel that made Oakland attractive in the first place.

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