From PBS Terra.

We need to talk about antecedent rivers. This river looks like it cuts through these mountain ridges —but the real story, according to geologists, is way more surprising than what the internet says. This is a story of hydrology, orogeny, erosion, and more.

Hosted by Joe Hanson, Overview is a series which explores the world from unique perspectives. The series combines incredible cinematography with science storytelling to reveal both the natural phenomena and human forces shaping our planet.

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