The removal of the dams comes after years of hard-fought environmental advocacy by members of the Lower Elwha Klallam Tribe to restore the tribe's historic lands. As detailed by the Times, since 1911, two dams blocked nearly 90 miles of river and tributary habitat on the Elwha River in Olympic National Park. The dams obstructed more than 90% of the river's natural flow, depleting salmon populations in the area and preventing the Lower Elwha Klallam Tribe from fishing the tribal waters.