The Pacific Northwest is known for things that are BIG
giant redwoods, sweeping coastlines and massive runs of salmon. But Zeb Hogan is looking for a goliath that's so elusive, he'll scour every nook and cranny of the rivers here to find it. He's after the green sturgeon a monster fish that can grow up to 7 feet long, live up to 70 years, and has been on Earth since the days of the dinosaurs.
Source: National Geographic Channel