Indian Country Today had an interesting story last week about proposed dam removals on the Klamath River in California. This would be a project even bigger than the one on the Elwha, but it is still a long way from settled that it will happen. Other resources: Klamath Basin Restoration Agreement on the Klamath Tribes website. Audubon website story from November. NPR story from March.
National Geographic story this month.
If you're not into reading things online, you can read Indian Country Today on paper in the library.