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.americanrivers.org.
Rank
River
Region
1.
Colorado River
California, Arizona, Utah, Colorado, Nevada, Wyoming, New Mexico
2.
Flint River
Georgia
3.
San Saba River
Texas
4.
Little Plover River
Wisconsin
5.
Catawba River
North Carolina, South Carolina
6.
Boundary Waters
Minnesota
7.
Black Warrior River
Alabama
8.
Rough and Ready and Baldface Creeks
Oregon
9.
Kootenai River
Idaho, Montana
10.
Niobrara River
Wyoming, Nebraska, South Dakota
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