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America's Ten Most Endangered Rivers, 2006

Each year the organization American Rivers analyzes the condition of the nation's rivers to determine which are the most “endangered.” Threats to these rivers include dams and channelizations that are harmful to fish or wildlife populations; depletion due to the rivers' use as a water supply for human populations; and coal mining operations that fill streams with coal and dirt. For more information, refer to the American Rivers website: www.amrivers.org .

Rank	River	State(s)
1.	Pajaro River	Calif.
2.	Upper Yellowstone River	Mont.
3.	Willamette River	Ore.
4.	Salmon Trout River	Mich.
5.	Shenandoah River	Va., W. Va.
6.	Boise River	Idaho
7.	Caloosahatchee River	Fla.
8.	Bristol Bay	Ark.
9.	San Jacinto River	Tex.
10.	Verde River	Ariz.

Environment

America's Ten Most Endangered Rivers, 2007

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