File:District of Columbia flag.png

Description: Flag of the District of Columbia.

Source: Originally PD-OpenClipart at http://upload.wikimedia.org/wikipedia/commons/thumb/3/3e/Flag_of_Washington%2C_D.C..svg/800px-Flag_of_Washington%2C_D.C..svg.png

License: This image is a U.S. federal district flag. Such flags are in the public domain.