This combination of rivers and tides forms “bull’s-eye” lakes in the Portland-Vancouver Basin, including Vancouver Lake. Some bull’s-eye lakes here are as old as 8,000 years, though many have been submerged by rising water. It’s a system that is unlike nearly every other river system in the world, another being the Amazon River.
Vancouver Lake isn’t a dying lake in the sense that it will eventually dry up — a worldwide occurrence exacerbated by climate change and water mishandling — because it’s tied to the sea level. As sea level rises, water in the ground also rises and feeds the basin.
“The lake does not die, at least not if people manage it properly,” Peterson said. “That lake will not go away. Give it another 5,000 or 10,000 years, and it will be submerged.”
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