珀泽申群岛上的阿德利企鹅© Tui De Roy/Minden Pictures
Signed October 2, 1968, by President Lyndon B. Johnson, the Wild and Scenic Rivers Act preserves rivers with \'outstanding natural, cultural, and recreational values in a free-flowing condition for the enjoyment of present and future generations.\' It covers 13,416 miles of streams and protects parts of such natural treasures as the Allagash, Salmon, Snake, Concord, Fortymile, Trinity, Missouri (the longest river in the US)—and the Merced River, which we\'re looking at here.

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© Tui De Roy/Minden Pictures
特别说明:位置信息由系统自动分析语义生成,可能部分位置信息有误,只作参考。