Cuyahoga Valley National Park is nestled between Akron and Cleveland, Ohio. It once was an industrial wasteland, filled with debris from the nearby auto factories. The Cuyahoga river was so polluted that it literally caught fire. That fire was a moment that sparked an environmental movement. But I'm headed upstream. I'm going to follow the river and its story from its grim past to becoming a national park.

We’ll look at how a toxic dump was transformed into a national park and a thriving ecosystem, teaming with life.

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THE WILD is a production of KUOW, Chris Morgan Wildlife, and the NPR Network. This episode was produced by Matt Martin and edited by Jim Gates. THE WILD is hosted, produced and written by Chris Morgan. Fact checking by Apryle Craig. Our theme music is by Michael Parker.