America's Most Endangered Rivers 2011
Eleven rivers make the 2011 list compiled by American Rivers. See how mining, development and damming could affect some of the best-known and most-loved rivers in the U.S. — and what you can do to help. By Dan Shapley
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St. Croix River
Normally a highway bridge might not be seen as one of the greatest threats to America's rivers, but the one proposed across the St. Croix river in Minnesota is unique, according to American Rivers. That's because the river has already been designated by Congress as a Wild and Scenic River, a designation meant to protect a river's scenery from unsightly development... like highway bridges. If it can happen here, the group warns, it could happen on dozens of designated rivers nationwide.
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