General Comte Jean de Rochambeau Memorial

Historical marker location:

Downtown Washington, District of Columbia

( Marker is at the intersection of Pennsylvania Avenue Northwest and Jackson Place Northwest, on the right when traveling west on Pennsylvania Avenue Northwest.)

Marker installed: 1902

Lafayette Square National Historic Landmark District.

The city was built on a swamp: The area that is now Washington, D.C. was originally a swampy, marshy region along the Potomac River. The construction of the city involved extensive drainage and landfill projects to make the land suitable for building.