The ten rivers named as America’s Most Endangered Rivers of 2011 highlight an issue of urgent concern to all Americans: clean water.

Clean water is vital to the health of our families and communities. Sixty five percent of our drinking water comes from rivers and streams, but many of our rivers are too polluted to use.

Working with local partners and concerned citizens, American Rivers fights to protect, preserve, and restore our rivers and clean water, and help save this year’s endangered rivers — and rivers nationwide for generations to come.

America’s Most Endangered Rivers® of 2011

Special Mention: Mississippi River

Arkansas, Illinois, Iowa, Kentucky, Louisiana, Minnesota, Mississippi, Missouri, Tennessee, Wisconsin
Threat: Flooding, destruction of wetlands
At stake: Local economies, clean drinking water

1. Susquehanna River

New York, Pennsylvania, Maryland
Threat: Natural gas extraction
At stake: Clean drinking water

2. Bristol Bay Rivers

Alaska
Threat: Massive mine
At stake: Livelihood of native tribes, salmon runs

3. Roanoke River

Virginia, North Carolina
Threat: Uranium mining
At stake: Clean water and public health

4. Chicago River

Illinois
Threat: Sewage pollution
At stake: Clean water and public health

5. Yuba River

California
Threat: Hydropower dams
At stake: Salmon and steelhead runs

6. Green River

Washington
Threat: Mining
At stake: Clean water and wildlife

7. Hoback River

Wyoming
Threat: Natural gas extraction
At stake: Clean water and wildlife habitat

8. Black Warrior River

Alabama
Threat: Strip mining for coal
At stake: Clean drinking water and public health

9. St. Croix River

Minnesota, Wisconsin
Threat: Costly highway bridge
At stake: Protection for Wild and Scenic rivers nationwide

10. Ozark National Scenic Riverways

Missouri
Threat: Overuse and poor planning
At stake: Clean water and recreation opportunities