Two dams were removed on Washington's Elwha River, allowing salmon, steelhead, and other species to expand to habitat which had been inaccessible for decades. John McMillan, Science Director for Trout Unlimited's Wild Steelhead Initiative explains what scientists have discovered in the years following the dam removal.

This is the keynote presentation of the 14th Annual Mat-Su Salmon Science and Conservation Symposium. The symposium is presented by the Mat-Su Basin Salmon Habitat Partnership. Learn more about the partnership's work at www.matsusalmon.org