Bill W. and Dr. Bob

Historical marker location:

1208 G Street Northwest, Penn Quarter, District of Columbia

( Marker can be reached from G Street Northwest west of 12th Street Northwest, on the left when traveling west.)

The Extra Mile. Points of Light Volunteer Pathway

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.