Through the Most Endangered Rivers report, American Rivers has been the national watchdog raising the alarm on imperiled rivers and energizing grassroots support to stop threats such as dam proposals, mining operations, coal-fired generators, and massive dumping of raw sewage.
Working with local partners, the media, elected officials, and concerned citizens, we have achieved spectacular successes for the nation’s rivers — and the people, fish, and wildlife that depend on them.
America's Most Endangered Rivers® of 2010
1. Upper Delaware River
New York, Pennsylvania
Threat: Natural gas extraction
2. Sacramento-San Joaquin
River Delta
California
Threat: Outdated water and flood
management
3. Gauley River
West Virginia
Threat: Mountaintop removal coal mining
4. Little River
North Carolina
Threat: New dam
5. Cedar River
Iowa
Threat: Outdated flood management
6. Upper Colorado River
Colorado
Threat: Water diversions
7. Chetco River
Wyoming
Threat: Mining
8. Teton River
Idaho
Threat: New dam
9. Monongahela River
Pennsylvania, West Virginia
Threat: Natural gas extraction
10. Coosa River
Missouri
Threat: Hydropower dams
