At the far end of the South Village Residences, the college maintains the Spencer J. Roemer Arboretum wherein are preserved "more than 70 species of trees, shrubs and wildflowers, including a magnificent group of oak trees which are more than 200 years old, and several black walnut trees estimated to be over 100 years old." The arboretum is used for teaching and recreation. It also has a gazebo and the college's memorial to four alumni who died in the September 11, 2001 attack on the World Trade Center in New York City, a gift left by the Class of 2002 through the Senior Challenge program.