Editing Olympic National Park (section)

==Elwha Ecosystem Restoration Project==
{{Main|Restoration of the Elwha River}}
The [[Elwha Ecosystem Restoration]] Project is the second-largest ecosystem restoration project in the history of the [[National Park Service]] after the [[Everglades]]. It consisted of removing the {{convert|210|ft|m|adj=on}} [[Glines Canyon Dam]] and draining its reservoir, [[Lake Mills (Washington)|Lake Mills]] and removing the {{convert|108|ft|m|adj=on}} [[Elwha Dam]] and its reservoir [[Lake Aldwell]] from the [[Elwha River]]. Upon removal, the park will revegetate the slopes and river bottoms to prevent erosion and speed up ecological recovery.<ref>{{Cite web |last=Coastal and Marine Hazards and Resources Program |date=June 17, 2019 |title=Elwha River Restoration Project |url=https://www.usgs.gov/programs/coastal-and-marine-hazards-and-resources-program/science/elwha-river-restoration-project |access-date=March 4, 2022 |publisher=[[United States Geological Survey|U.S. Geological Survey]]}}</ref> The primary purpose of this project is to restore [[anadromous]] stocks of [[Pacific Salmon]] and [[Rainbow trout|steelhead]] to the [[Elwha River]], which have been denied access to the upper {{convert|65|mi|km}} of river habitat for more than 95 years by these dams. Removal of the dams was completed in 2014.