Map Resources: Internet Map Resources

Popular Sites

  • MapQuest
    A favorite site for driving directions.
  • Google Maps
    Useful for both driving directions and satellite maps of the US.
  • Local Live  (MapBlast)
    Another site for driving directions, including construction on major highways.
  • The National Map  United States Geological Survey (USGS)
    An interactive topographic map of the US.
  • WorldTimeZone
    Find time of day elsewhere.

Colorado Thematic Maps

Historical Maps

  • Map Collections  (Library of Congress)
    Useful for examples rather than comprehensive collections.
    Up-to-date online maps for the US covering many themes.
  • National Atlases   (Library of Congress)
    Full text and maps from the US National Atlas of 1970 and US atlases from 1870, 1880, and 1890.
  • Geologic Atlas of the United States, 1894-1945.  A digital project of the Texas A&M University Libraries, this is a set of 227 folios published by the U.S. Geological Survey between 1894 and 1945.  Each folio has topographic and geologic maps for each quadrant in the folio.
  • National Geographic Map Collection
    Historical folded maps originally included in the magazine.
  • Office of Coast Survey  (NOAA)
    A large collection searchable by geographic name.
  • Perry-Castaneda Map Collection
    Scroll down for a link to historical maps.
  • Historical Map Archive, University of Alabama Libraries.  Digitized historical maps from several libraries in Alabama, coordinated and housed by the University of Alabama Libraries. 
  • David Rumsey Map Collection 
     Thousands of online maps, particularly for 18th and 19th century North and South America.
  • Federal Newsmaps (University of North Texas)
    These maps were produced during World War II and immediately afterward.
  • Maps of Africa  (Northwestern University Libraries)
    Includes 16th through the 20th centuries.
  • Hawaii Historical Topographical Quadrangle Maps 1910-1933 (University of Hawaii Libraries)
    1:31,650 scale for all the islands except for Oahu which is at 1:20,000 scale. These are downloadable as a geotiff, which means that it can be imported into a Geographic Information System. You may also simply view the tiff as a jpeg with any image viewer.

Latitude & Longitude

Printable Maps

Understanding Maps