One of the most prized features of the Andover campus is its majestic elm trees. While New England saw most of its elms wiped out in the '60s and '70s by Dutch elm disease, Andover made a concerted and ultimately successful effot to save its trees from the scourge. Today, the campus boasts one of the most impressive collections of elm trees in the country. The best way to enjoy these trees is to stroll along the Elm Arch, a pathway that runs the length of the Great Lawn and over which hangs the canopy formed by the two rows of elms that line its border.