America’s Most Endangered Rivers® of 2023

Ten rivers, ten solutions.

These are America’s Most Endangered Rivers® of 2023:

1. Colorado River, Grand Canyon (Arizona):  THREAT: Climate change, outdated water management

2. Ohio River (Pennsylvania, Ohio, West Virginia, Kentucky, Indiana, Illinois):  THREAT: Pollution, climate change

3. Pearl River (Mississippi):  THREAT: Dredging and dam construction

4. Snake River (Idaho, Oregon, Washington):  THREAT: Four federal dams

5. Clark Fork River (Montana):  THREAT: Pulp mill pollution

6. Eel River (California):  THREAT: Dams

7. Lehigh River (Pennsylvania):  THREAT: Poorly planned development

8. Chilkat and Klehini rivers (Alaska):  THREAT: Mining

9. Rio Gallinas (New Mexico):  THREAT: Climate change, outdated forest and watershed management

10. Okefenokee Swamp (Georgia, Florida):  THREAT: Mining TAKE ACTION:

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