Forrest Hamilton of the Maryland section of the International Dark Sky Association (IDA) has divided the World Light Pollution Atlas into states and added county lines. Thanks to Bob Bunge for the idea and getting permission for their use.

Northern Virginia - Click photos to enlarge

Virginia

Maryland

West Virginia

All Areas

To learn more about light pollution, visit these websites:

VOLT - The Virginia Outdoor Lighting Taskforce

International Dark Sky Association

The World Light Pollution Atlas

Photo copyright http://www.lightpollution.it/worldatlas/pages/copyright.html