Historical Marker
The Boundary Channel
Historical marker location:
104 Boundary Channel Drive, Columbia Island, District of Columbia
( Marker can be reached from Boundary Channel Drive. Reported permanently removed.)
George Washington Memorial Parkway.
The District was the site of the first public monument to George Washington: The Washington Monument, which stands in the center of the National Mall, was built to honor the first U.S. president. It was completed in 1884, more than 50 years after construction began.