Forests of the United States
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It has been estimated that before European settlement, forests in the United States mainland covered nearly 1 billion acres (4,000,000 km2). Since the mid-1600s, about 300 million acres (1,200,000 km2) of forest have been cleared, primarily for agriculture during the 19th century.
As of 2023, approximately 36% of the US is forested. Excluding the U.S. territories, forested land in the U.S. covers roughly 811,581,000 acres (3,284,351 square kilometers). As of 2005, the United States ranked seventh in the rate of loss of its old growth forests.