 The memorial is one of eighteen Civil War monuments in Washington , D.C. , which were collectively listed on the National Register of Historic Places in 1978 . The marble and granite sculpture , which includes depictions of Meade and seven allegorical figures , rests on a granite base and granite platform . It is surrounded by a public plaza and small park . The monument is owned and maintained by the National Park Service , a federal agency of the Interior Department . 
