American Memory Map Collection High quality map images from the Civil War Battle sites, panoramic views of cities and towns, historic transportation maps, and more.
Geographic Names Information System U.S. Board on Geographic Names is a Federal body created to maintain uniform geographic name usage throughout the Federal Government.
Getty Thesaurus of Geographic Names The TGN is a structured vocabulary containing around 912,000 records, including 1.1 million names, place types, coordinates, and descriptive notes, focusing on places important for the study of art and architecture.
Historical Maps Online Images of maps charting the last 400 years of historical development in Illinois, the Northwest Territory, and more.
How Far Is It? This site uses data from the US Census and a supplementary list of cities around the world to find the latitude and longitude of two places, and then calculates the distance between them (as the crow flies). It also provides links to maps of the locations.
Internet Geography Factual information about geographical topics.
Iowa DOT Information includes roadway, structure, and rail-crossing data, traffic statistics, and intelligent map products that support the economic, environmental, and social vitality of Iowa.
MapQuest Find millions of places, including businesses, airports, schools, parks and landmarks.
National Atlas of the United States A comprehensive, maplike view into the enormous wealth of geospatial and geostatistical data collected from more that 20 Federal agencies.
National Geographic Map Machine This site offers, among other resources: MapMachine; Custom Maps by Mail; mapXchange; printer friendly maps; conservation maps; and country profiles.
Perry-Castaneda Library Map Collection A collection of historical and current maps, it also includes statistical and demographic information.
Terraserver Sponsored by the US Geological Survey this site provides aerial imagery data and Digital Raster Graphics (DRG) topographical map data along with statistical and demographical information.
Topofactory Interactive topographic map site.
USMA Historical Maps A collection of historical maps from the Colonial and Federal periods, and the Civil War.
Xpeditions A National Geographic site for printable maps of the United States and countries from around the world.