The Library of Congress in Washington, D.C., maintains an inventory of published street addresses for a series of U.S. cities from Agoura, California, to Youngstown, Massachusetts. Library patrons may request these direc... More » Geography Maps & Cartography

Cross-referencing street addresses with other information makes it easier to locate additional information about an address and to create reverse look-up directories for various purposes. Cross-referencing addresses indi... More » Government & Politics Public Records

Maps of the Washington, D.C. area can be found on, and, as of 2015. All three websites feature a street map of the area. More » Geography Maps & Cartography

Also known as Washington, D.C., the District of Columbia is the capital city of the United States of America. By U.S. law, Washington, D.C. is not part of a state and is under the direct authority of the federal governme... More »

The Library of Congress offers a variety of historic railroad maps organized by geographic regions, subjects, titles, creators and specific railroad lines. Google Maps offers a current railroad map of the United States. More » Geography Maps & Cartography

The Library of Congress offers some free Sanborn fire insurance maps online at its website, To view the maps, users search by state and then select a city for its available maps. Users can also view maps from Ca... More » Geography Maps & Cartography

An 1857 map attributed to Johann Georg Kohl showing where Juan Rodriguez Cabrillo traveled is available on the Library of Congress website. It is called "A Map Showing the Progress of Discovery on the West Coast of the U... More » Geography Maps & Cartography