Keeping It Green

Historical marker location:

Federal Triangle, District of Columbia

( Marker is on Constitution Avenue Northwest (U.S. 1/50) west of 12th Street Northwest, on the right when traveling west.)

Marker installed: 2012

Make No Little Plans. Federal Triangle Heritage Trail

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.