ARLINGTON; Va. -- Paul Carter (left), a Norfolk District forester; and Stephen Van Hoven, Arlington National Cemetery’s Horticulture Division chief, reference detailed drawings and markings to determine their exact location within the Arlington National Cemetery Millennium Project here, Feb. 6, 2013. The two men investigating the age of trees located within the project boundaries to ensure the initial estimates on tree ages documented in the project’s environmental assessment are correct. The Millennium Project will add 27 acres to the cemetery and nearly 30,000 additional burial and niche spaces. (U.S. Army photo/Patrick Bloodgood)