This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Map of the District of Columbia and adjoining parts of Maryland and Virginia showing p. of NARA . Scope and content General notes Local identifier CWMFZ War Department Office of the Chief of Engineers National Archives at College Park Cartographic RDDCC National Archives at College Park Adelphi Road College Park MD date