United States National Arboretum (Paperback)

High Quality Content by WIKIPEDIA articles! High Quality Content by WIKIPEDIA articles! The United States National Arboretum is an arboretum in Washington, D.C., operated by the United States Department of Agriculture's Agricultural Research Service as a division of the Henry A. Wallace Beltsville Agricultural Research Center. It was established in 1927 by an act of Congress after a campaign by USDA Chief Botanist Frederick Vernon Coville.It is 446 acres (1.80 km2) in size, and is located 2.2 miles (3.5 km) northeast of the Capitol building, with entrances on New York Avenue and R Street. Nine miles of roadways wind through and connect the numerous gardens and collections on the campus.