USDA Forest Service

North American Freshwater Mussels

A new book by U.S. Forest Service scientist Wendell Haag provides the first comprehensive view of the ecology and conservation of the approximately 300 species of North American freshwater mussels. Intended ...

Oct 09, 2012
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New Hampshire leads nation in percent tree cover

Tree cover in the nation's Lower 48 states covers 659 million acres, more than one-third of the nation, according to a U.S. Forest Service study of national tree cover and impervious surfaces. New Hampshire leads the nation ...

Aug 06, 2012
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